diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..fab9b7a
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,12 @@
+{
+    "rust-analyzer.cargo.cfgs": {
+        "FASTWAVE_PLATFORM": "TAURI",
+        // "FASTWAVE_PLATFORM": "BROWSER",
+    },
+    // https://github.com/rustwasm/wasm-bindgen/issues/2339#issuecomment-2147636233
+    "rust-analyzer.cargo.extraEnv": {
+        "RUSTFLAGS": "--cfg=web_sys_unstable_apis"
+    },
+    // to prevent rebuilding from scratch on each change
+    "rust-analyzer.cargo.target": "wasm32-unknown-unknown"
+}
diff --git a/README.md b/README.md
index c798955..6cbc9db 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,27 @@
 
 ---
 
+<p align="center">Default state - Dark (new design)</p>
+<p align="center">
+  <img width="800" src="docs/home_dark.png" alt="Fastwave - Default state - Dark (not implemented yet)" />
+</p>
+
+<p align="center">Loaded files - Dark (new design)</p>
+<p align="center">
+  <img width="800" src="docs/loaded_files_dark.png" alt="Fastwave - Loaded files - Dark (not implemented yet)" />
+</p>
+
+<p align="center">Default state - Light (new design)</p>
+<p align="center">
+  <img width="800" src="docs/home_light.png" alt="Fastwave - Default state - Light (not implemented yet)" />
+</p>
+
+<p align="center">Loaded files - Light (new design)</p>
+<p align="center">
+  <img width="800" src="docs/loaded_files_light.png" alt="Fastwave - Loaded files - Light (not implemented yet)" />
+</p>
+
+
 <p align="center">Browser (Firefox)</p>
 <p align="center">
   <img width="800" src="docs/screenshot_firefox.png" alt="Fastwave - Browser (Firefox)" />
@@ -33,7 +54,7 @@
   <img width="800" src="docs/video_load_save_selected_vars.gif" alt="Fastwave - Load and save selected variables" />
 </p>
 
-<p align="center">Decoders Demo</p> 
+<p align="center">Decoders (Plugins) Demo</p> 
 <p align="center">
   <img width="800" src="docs/video_decoders.gif" alt="Fastwave - Decoders demo" />
 </p>
@@ -97,7 +118,13 @@ Troubleshooting:
 
 1. `makers format`
 
+---
 
+### Rebuild Decoders:
+
+See `test_files/components/[language]_decoder/README.md`
+
+---
 
 ### Test files
 
diff --git a/backend/favicon.html b/backend/favicon.html
new file mode 100644
index 0000000..9ef415c
--- /dev/null
+++ b/backend/favicon.html
@@ -0,0 +1,8 @@
+<link rel="apple-touch-icon" sizes="180x180" href="/_api/public/favicon/apple-touch-icon.png">
+<link rel="icon" type="image/png" sizes="32x32" href="/_api/public/favicon/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="/_api/public/favicon/favicon-16x16.png">
+<link rel="manifest" href="/_api/public/favicon/site.webmanifest">
+<link rel="shortcut icon" href="/_api/public/favicon/favicon.ico">
+<meta name="msapplication-TileColor" content="#00a300">
+<meta name="msapplication-config" content="/_api/public/favicon/browserconfig.xml">
+<meta name="theme-color" content="#ffffff">
diff --git a/backend/src/main.rs b/backend/src/main.rs
index fe6bfd7..c9df718 100644
--- a/backend/src/main.rs
+++ b/backend/src/main.rs
@@ -3,6 +3,7 @@ use moon::*;
 async fn frontend() -> Frontend {
     Frontend::new()
         .title("FastWave")
+        .append_to_head(include_str!("../favicon.html")) // realfavicongenerator.net
         .append_to_head(concat!("<style>", include_str!("../style.css"), "</style>"))
         .append_to_head(concat!(
             "<script type=\"module\">",
diff --git a/backend/style.css b/backend/style.css
index d78ea00..719f592 100644
--- a/backend/style.css
+++ b/backend/style.css
@@ -1,3 +1,4 @@
 html {
-    background-color: DarkSlateBlue;
-}
\ No newline at end of file
+    /* background-color: DarkSlateBlue; */
+    background-color: oklch(41.43% 0.125 262.26);
+}
diff --git a/docs/fastwave_logo.png b/docs/fastwave_logo.png
new file mode 100644
index 0000000..b31509c
Binary files /dev/null and b/docs/fastwave_logo.png differ
diff --git a/docs/fastwave_logo_square.png b/docs/fastwave_logo_square.png
new file mode 100644
index 0000000..f5aa090
Binary files /dev/null and b/docs/fastwave_logo_square.png differ
diff --git a/docs/home_dark.png b/docs/home_dark.png
new file mode 100644
index 0000000..4a3df0e
Binary files /dev/null and b/docs/home_dark.png differ
diff --git a/docs/home_light.png b/docs/home_light.png
new file mode 100644
index 0000000..ce9bf4e
Binary files /dev/null and b/docs/home_light.png differ
diff --git a/docs/loaded_files_dark.png b/docs/loaded_files_dark.png
new file mode 100644
index 0000000..89c5957
Binary files /dev/null and b/docs/loaded_files_dark.png differ
diff --git a/docs/loaded_files_light.png b/docs/loaded_files_light.png
new file mode 100644
index 0000000..37a2b03
Binary files /dev/null and b/docs/loaded_files_light.png differ
diff --git a/frontend/Cargo.toml b/frontend/Cargo.toml
index 930650e..f463636 100644
--- a/frontend/Cargo.toml
+++ b/frontend/Cargo.toml
@@ -10,6 +10,9 @@ publish.workspace = true
 [dev-dependencies]
 wasm-bindgen-test = "0.3.19"
 
+[lints.rust]
+unexpected_cfgs = { level = "allow", check-cfg = ['cfg(FASTWAVE_PLATFORM)'] }
+
 [dependencies]
 zoon.workspace = true
 wellen.workspace = true
diff --git a/frontend/src/command_panel.rs b/frontend/src/command_panel.rs
new file mode 100644
index 0000000..863f4ed
--- /dev/null
+++ b/frontend/src/command_panel.rs
@@ -0,0 +1,141 @@
+use crate::{script_bridge, theme::*};
+use zoon::*;
+
+pub struct CommandPanel {}
+
+impl CommandPanel {
+    pub fn new() -> impl Element {
+        Self {}.root()
+    }
+
+    fn root(&self) -> impl Element {
+        let command_result: Mutable<Option<Result<JsValue, JsValue>>> = <_>::default();
+        Row::new()
+            .s(Align::new().top())
+            .s(Gap::both(30))
+            .s(Width::fill())
+            .s(Padding::new().x(20).bottom(20))
+            .item(self.command_editor_panel(command_result.clone()))
+            .item(self.command_result_panel(command_result.read_only()))
+    }
+
+    fn command_editor_panel(
+        &self,
+        command_result: Mutable<Option<Result<JsValue, JsValue>>>,
+    ) -> impl Element {
+        Column::new()
+            .s(Align::new().top())
+            .s(Gap::new().y(10))
+            .s(Width::growable())
+            .item(
+                Row::new()
+                    .s(Gap::new().x(15))
+                    .s(Padding::new().x(5))
+                    .item(El::new().child("Javascript commands"))
+                    .item(El::new().s(Align::new().right()).child("Shift + Enter")),
+            )
+            .item(self.command_editor(command_result))
+    }
+
+    fn command_editor(
+        &self,
+        command_result: Mutable<Option<Result<JsValue, JsValue>>>,
+    ) -> impl Element {
+        let (script, script_signal) = Mutable::new_and_signal_cloned(String::new());
+        // @TODO perhaps replace with an element with syntax highlighter like https://github.com/WebCoder49/code-input later
+        TextArea::new()
+            .s(Background::new().color(COLOR_SLATE_BLUE))
+            .s(Padding::new().x(10).y(8))
+            .s(RoundedCorners::all(15))
+            .s(Height::default().min(50))
+            .s(Width::fill().min(300))
+            .s(Font::new()
+                .tracking(1)
+                .weight(FontWeight::Medium)
+                .color(COLOR_WHITE)
+                .family([FontFamily::new("Courier New"), FontFamily::Monospace]))
+            .s(Shadows::new([Shadow::new()
+                .inner()
+                .color(COLOR_DARK_SLATE_BLUE)
+                .blur(4)]))
+            // @TODO `spellcheck` and `resize` to MZ API? (together with autocomplete and others?)
+            .update_raw_el(|raw_el| {
+                raw_el
+                    .attr("spellcheck", "false")
+                    .style("resize", "vertical")
+            })
+            .placeholder(Placeholder::new("FW.say_hello()").s(Font::new().color(COLOR_LIGHT_BLUE)))
+            .label_hidden("command editor panel")
+            .text_signal(script_signal)
+            .on_change(clone!((script, command_result) move |text| {
+                script.set_neq(text);
+                command_result.set_neq(None);
+            }))
+            .on_key_down_event_with_options(EventOptions::new().preventable(), move |event| {
+                if event.key() == &Key::Enter {
+                    let RawKeyboardEvent::KeyDown(raw_event) = event.raw_event.clone();
+                    if raw_event.shift_key() {
+                        // @TODO move `prevent_default` to MZ API (next to the `pass_to_parent` method?)
+                        raw_event.prevent_default();
+                        Task::start(clone!((script, command_result) async move {
+                            let result = script_bridge::strict_eval(&script.lock_ref()).await;
+                            command_result.set(Some(result));
+                        }));
+                    }
+                }
+            })
+    }
+
+    fn command_result_panel(
+        &self,
+        command_result: ReadOnlyMutable<Option<Result<JsValue, JsValue>>>,
+    ) -> impl Element {
+        Column::new()
+            .s(Gap::new().y(10))
+            .s(Align::new().top())
+            .s(Scrollbars::both())
+            .s(Padding::new().x(5))
+            .s(Width::growable().max(750))
+            .item(El::new().child("Command result"))
+            .item(self.command_result_el(command_result))
+    }
+
+    fn command_result_el(
+        &self,
+        command_result: ReadOnlyMutable<Option<Result<JsValue, JsValue>>>,
+    ) -> impl Element {
+        El::new()
+            .s(Font::new()
+                .tracking(1)
+                .weight(FontWeight::Medium)
+                .color(COLOR_WHITE)
+                .family([FontFamily::new("Courier New"), FontFamily::Monospace]))
+            .s(Scrollbars::both())
+            .s(Height::default().max(100))
+            .child_signal(command_result.signal_ref(|result| {
+                fn format_complex_js_value(js_value: &JsValue) -> String {
+                    let value = format!("{js_value:?}");
+                    let value = value.strip_prefix("JsValue(").unwrap_throw();
+                    let value = value.strip_suffix(')').unwrap_throw();
+                    value.to_owned()
+                }
+                match result {
+                    Some(Ok(js_value)) => {
+                        if let Some(string_value) = js_value.as_string() {
+                            string_value
+                        } else if let Some(number_value) = js_value.as_f64() {
+                            number_value.to_string()
+                        } else if let Some(bool_value) = js_value.as_bool() {
+                            bool_value.to_string()
+                        } else {
+                            format_complex_js_value(js_value)
+                        }
+                    }
+                    Some(Err(js_value)) => {
+                        format!("ERROR: {}", format_complex_js_value(js_value))
+                    }
+                    None => "-".to_owned(),
+                }
+            }))
+    }
+}
diff --git a/frontend/src/controls_panel.rs b/frontend/src/controls_panel.rs
index 521acdd..aa3a205 100644
--- a/frontend/src/controls_panel.rs
+++ b/frontend/src/controls_panel.rs
@@ -1,4 +1,4 @@
-use crate::{Filename, Layout};
+use crate::{theme::*, Filename, Layout};
 use std::cell::Cell;
 use std::mem;
 use std::ops::Not;
@@ -238,9 +238,9 @@ impl ControlsPanel {
         let background_color = map_ref! {
             let is_selected = is_selected,
             let is_hovered = button_hovered_signal => match (*is_selected, *is_hovered) {
-                (true, _) => color!("BlueViolet"),
-                (false, true) => color!("MediumSlateBlue"),
-                (false, false) => color!("SlateBlue"),
+                (true, _) => COLOR_BLUE_VIOLET,
+                (false, true) => COLOR_MEDIUM_SLATE_BLUE,
+                (false, false) => COLOR_SLATE_BLUE,
             }
         };
         let task_collapse_on_parent_collapse = {
@@ -332,7 +332,7 @@ impl ControlsPanel {
                         .map_true(|| 10),
                 ))
             .s(Height::fill())
-            .s(Font::new().color_signal(hovered_signal.map_true(|| color!("LightBlue"))))
+            .s(Font::new().color_signal(hovered_signal.map_true(|| COLOR_LIGHT_BLUE)))
             .label(
                 El::new()
                     .s(Transform::with_signal_self(layout_and_expanded.map(
@@ -488,7 +488,7 @@ impl ControlsPanel {
             Button::new()
                 .s(Padding::new().x(15).y(5))
                 .s(Background::new().color_signal(
-                    hovered_signal.map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                    hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
                 ))
                 .s(RoundedCorners::all(15))
                 .on_hovered_change(move |is_hovered| hovered.set_neq(is_hovered))
diff --git a/frontend/src/header_panel.rs b/frontend/src/header_panel.rs
index 3becd90..5007d73 100644
--- a/frontend/src/header_panel.rs
+++ b/frontend/src/header_panel.rs
@@ -1,4 +1,4 @@
-use crate::{platform, script_bridge, Filename, Layout};
+use crate::{platform, theme::*, Filename, Layout};
 use std::sync::Arc;
 use zoon::*;
 
@@ -34,7 +34,6 @@ impl HeaderPanel {
                     .item(self.load_button())
                     .item(self.layout_switcher()),
             )
-            .item(self.command_panel())
     }
 
     #[cfg(FASTWAVE_PLATFORM = "TAURI")]
@@ -45,7 +44,7 @@ impl HeaderPanel {
         Button::new()
             .s(Padding::new().x(20).y(10))
             .s(Background::new().color_signal(
-                hovered_signal.map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
             ))
             .s(Align::new().left())
             .s(RoundedCorners::all(15))
@@ -85,8 +84,7 @@ impl HeaderPanel {
                 Label::new()
                     .s(Padding::new().x(20).y(10))
                     .s(Background::new().color_signal(
-                        hovered_signal
-                            .map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                        hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
                     ))
                     .s(Align::new().left())
                     .s(RoundedCorners::all(15))
@@ -154,7 +152,7 @@ impl HeaderPanel {
         Button::new()
             .s(Padding::new().x(20).y(10))
             .s(Background::new().color_signal(
-                hovered_signal.map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
             ))
             .s(RoundedCorners::all(15))
             .label_signal(layout.signal().map(|layout| match layout {
@@ -169,137 +167,4 @@ impl HeaderPanel {
                 })
             })
     }
-
-    fn command_panel(&self) -> impl Element {
-        let command_result: Mutable<Option<Result<JsValue, JsValue>>> = <_>::default();
-        Row::new()
-            .s(Align::new().top())
-            .s(Gap::both(30))
-            .s(Scrollbars::both())
-            .s(Width::fill())
-            .item(self.command_editor_panel(command_result.clone()))
-            .item(self.command_result_panel(command_result.read_only()))
-    }
-
-    fn command_editor_panel(
-        &self,
-        command_result: Mutable<Option<Result<JsValue, JsValue>>>,
-    ) -> impl Element {
-        Column::new()
-            .s(Align::new().top())
-            .s(Gap::new().y(10))
-            .s(Width::growable())
-            .item(
-                Row::new()
-                    .s(Gap::new().x(15))
-                    .s(Padding::new().x(5))
-                    .item(El::new().child("Javascript commands"))
-                    .item(El::new().s(Align::new().right()).child("Shift + Enter")),
-            )
-            .item(self.command_editor(command_result))
-    }
-
-    fn command_editor(
-        &self,
-        command_result: Mutable<Option<Result<JsValue, JsValue>>>,
-    ) -> impl Element {
-        let (script, script_signal) = Mutable::new_and_signal_cloned(String::new());
-        // @TODO perhaps replace with an element with syntax highlighter like https://github.com/WebCoder49/code-input later
-        TextArea::new()
-            .s(Background::new().color(color!("SlateBlue")))
-            .s(Padding::new().x(10).y(8))
-            .s(RoundedCorners::all(15))
-            .s(Height::default().min(50))
-            .s(Width::fill().min(300))
-            .s(Font::new()
-                .tracking(1)
-                .weight(FontWeight::Medium)
-                .color(color!("White"))
-                .family([FontFamily::new("Courier New"), FontFamily::Monospace]))
-            .s(Shadows::new([Shadow::new()
-                .inner()
-                .color(color!("DarkSlateBlue"))
-                .blur(4)]))
-            // @TODO `spellcheck` and `resize` to MZ API? (together with autocomplete and others?)
-            .update_raw_el(|raw_el| {
-                raw_el
-                    .attr("spellcheck", "false")
-                    .style("resize", "vertical")
-            })
-            .placeholder(
-                Placeholder::new("FW.say_hello()").s(Font::new().color(color!("LightBlue"))),
-            )
-            .label_hidden("command editor panel")
-            .text_signal(script_signal)
-            .on_change(clone!((script, command_result) move |text| {
-                script.set_neq(text);
-                command_result.set_neq(None);
-            }))
-            .on_key_down_event_with_options(EventOptions::new().preventable(), move |event| {
-                if event.key() == &Key::Enter {
-                    let RawKeyboardEvent::KeyDown(raw_event) = event.raw_event.clone();
-                    if raw_event.shift_key() {
-                        // @TODO move `prevent_default` to MZ API (next to the `pass_to_parent` method?)
-                        raw_event.prevent_default();
-                        Task::start(clone!((script, command_result) async move {
-                            let result = script_bridge::strict_eval(&script.lock_ref()).await;
-                            command_result.set(Some(result));
-                        }));
-                    }
-                }
-            })
-    }
-
-    fn command_result_panel(
-        &self,
-        command_result: ReadOnlyMutable<Option<Result<JsValue, JsValue>>>,
-    ) -> impl Element {
-        Column::new()
-            .s(Gap::new().y(10))
-            .s(Align::new().top())
-            .s(Scrollbars::both())
-            .s(Padding::new().x(5))
-            .s(Width::growable().max(750))
-            .item(El::new().child("Command result"))
-            .item(self.command_result_el(command_result))
-    }
-
-    fn command_result_el(
-        &self,
-        command_result: ReadOnlyMutable<Option<Result<JsValue, JsValue>>>,
-    ) -> impl Element {
-        El::new()
-            .s(Font::new()
-                .tracking(1)
-                .weight(FontWeight::Medium)
-                .color(color!("White"))
-                .family([FontFamily::new("Courier New"), FontFamily::Monospace]))
-            .s(Scrollbars::both())
-            .s(Height::default().max(100))
-            .child_signal(command_result.signal_ref(|result| {
-                fn format_complex_js_value(js_value: &JsValue) -> String {
-                    let value = format!("{js_value:?}");
-                    let value = value.strip_prefix("JsValue(").unwrap_throw();
-                    let value = value.strip_suffix(')').unwrap_throw();
-                    value.to_owned()
-                }
-                match result {
-                    Some(Ok(js_value)) => {
-                        if let Some(string_value) = js_value.as_string() {
-                            string_value
-                        } else if let Some(number_value) = js_value.as_f64() {
-                            number_value.to_string()
-                        } else if let Some(bool_value) = js_value.as_bool() {
-                            bool_value.to_string()
-                        } else {
-                            format_complex_js_value(js_value)
-                        }
-                    }
-                    Some(Err(js_value)) => {
-                        format!("ERROR: {}", format_complex_js_value(js_value))
-                    }
-                    None => "-".to_owned(),
-                }
-            }))
-    }
 }
diff --git a/frontend/src/main.rs b/frontend/src/main.rs
index 8c45559..b25c417 100644
--- a/frontend/src/main.rs
+++ b/frontend/src/main.rs
@@ -13,6 +13,12 @@ use waveform_panel::{PixiController, WaveformPanel};
 mod header_panel;
 use header_panel::HeaderPanel;
 
+mod command_panel;
+use command_panel::CommandPanel;
+
+pub mod theme;
+use theme::*;
+
 #[derive(Clone, Copy, Default)]
 enum Layout {
     Tree,
@@ -50,7 +56,7 @@ fn root() -> impl Element {
     Column::new()
         .s(Height::fill())
         .s(Scrollbars::y_and_clip_x())
-        .s(Font::new().color(color!("Lavender")))
+        .s(Font::new().color(COLOR_LAVENDER))
         .item(HeaderPanel::new(
             hierarchy.clone(),
             layout.clone(),
@@ -98,4 +104,5 @@ fn root() -> impl Element {
                 }
             }
         )
+        .item(CommandPanel::new())
 }
diff --git a/frontend/src/theme.rs b/frontend/src/theme.rs
new file mode 100644
index 0000000..8d04a66
--- /dev/null
+++ b/frontend/src/theme.rs
@@ -0,0 +1,27 @@
+use zoon::*;
+
+// https://oklch.com/
+
+// pub const COLOR_BLUE_VIOLET: Rgba = color!("BlueViolet");  // oklch(53.38% 0.25 301.37)
+pub const COLOR_BLUE_VIOLET: Oklch = color!("oklch(53.38% 0.25 262.59)");
+
+// pub const COLOR_MEDIUM_SLATE_BLUE: Rgba = color!("MediumSlateBlue");   // oklch(60.45% 0.194 285.5)
+pub const COLOR_MEDIUM_SLATE_BLUE: Oklch = color!("oklch(60.45% 0.194 262.26)");
+
+// pub const COLOR_SLATE_BLUE_WITH_ALPHA: Rgba = color!("SlateBlue", 0.8);  // oklch(54.36% 0.171 285.54)
+pub const COLOR_SLATE_BLUE_WITH_ALPHA: Oklch = color!("oklch(54.36% 0.171 262.26)", 0.8);
+
+// pub const COLOR_SLATE_BLUE: Rgba = color!("SlateBlue");  // oklch(54.36% 0.171 285.54)
+pub const COLOR_SLATE_BLUE: Oklch = color!("oklch(54.36% 0.171 262.26)");
+
+// pub const COLOR_LIGHT_BLUE: Rgba = color!("LightBlue");  // oklch(85.62% 0.049 219.65)
+pub const COLOR_LIGHT_BLUE: Oklch = color!("oklch(85.62% 0.049 262.26)");
+
+// pub const COLOR_WHITE: Rgba = color!("White");  // oklch(100% 3.5594404384177905e-8 106.37411429114086)
+pub const COLOR_WHITE: Oklch = color!("oklch(100% 3.5594404384177905e-8 105.88)");
+
+// pub const COLOR_DARK_SLATE_BLUE: Rgba = color!("DarkSlateBlue");  // oklch(41.43% 0.125 286.04)
+pub const COLOR_DARK_SLATE_BLUE: Oklch = color!("oklch(41.43% 0.125 262.26)");
+
+// pub const COLOR_LAVENDER: Rgba = color!("Lavender");  // oklch(93.09% 0.027 285.86)
+pub const COLOR_LAVENDER: Oklch = color!("oklch(93.09% 0.027 262.26)");
diff --git a/frontend/src/waveform_panel.rs b/frontend/src/waveform_panel.rs
index e2ce51f..6ec20af 100644
--- a/frontend/src/waveform_panel.rs
+++ b/frontend/src/waveform_panel.rs
@@ -1,4 +1,4 @@
-use crate::{platform, script_bridge, Filename};
+use crate::{platform, script_bridge, theme::*, Filename};
 use std::sync::Arc;
 use wellen::GetItem;
 use zoon::*;
@@ -87,7 +87,7 @@ impl WaveformPanel {
         Button::new()
             .s(Padding::new().x(20).y(10))
             .s(Background::new().color_signal(
-                hovered_signal.map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
             ))
             .s(Align::new().left())
             .s(RoundedCorners::all(15))
@@ -122,8 +122,7 @@ impl WaveformPanel {
                 Label::new()
                     .s(Padding::new().x(20).y(10))
                     .s(Background::new().color_signal(
-                        hovered_signal
-                            .map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                        hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
                     ))
                     .s(Align::new().left())
                     .s(RoundedCorners::all(15))
@@ -178,7 +177,7 @@ impl WaveformPanel {
         Button::new()
             .s(Padding::new().x(20).y(10))
             .s(Background::new().color_signal(
-                hovered_signal.map_bool(|| color!("MediumSlateBlue"), || color!("SlateBlue")),
+                hovered_signal.map_bool(|| COLOR_MEDIUM_SLATE_BLUE, || COLOR_SLATE_BLUE),
             ))
             .s(RoundedCorners::all(15))
             .label("Save")
@@ -349,7 +348,7 @@ impl WaveformPanel {
             .s(Height::exact(ROW_HEIGHT))
             .s(Width::growable())
             .s(Background::new().color_signal(
-                hovered_signal.map_bool(|| color!("SlateBlue"), || color!("SlateBlue", 0.8)),
+                hovered_signal.map_bool(|| COLOR_SLATE_BLUE, || COLOR_SLATE_BLUE_WITH_ALPHA),
             ))
             .s(RoundedCorners::new().left(15).right(5))
             .label(
@@ -384,7 +383,7 @@ impl WaveformPanel {
             .s(Height::exact(ROW_HEIGHT))
             .s(Width::exact(70))
             .s(Background::new().color_signal(
-                hovered_signal.map_bool(|| color!("SlateBlue"), || color!("SlateBlue", 0.8)),
+                hovered_signal.map_bool(|| COLOR_SLATE_BLUE, || COLOR_SLATE_BLUE_WITH_ALPHA),
             ))
             .s(RoundedCorners::new().left(5))
             .label(
diff --git a/frontend/typescript/bundles/pixi_canvas.js b/frontend/typescript/bundles/pixi_canvas.js
index 607cf53..92c922d 100644
--- a/frontend/typescript/bundles/pixi_canvas.js
+++ b/frontend/typescript/bundles/pixi_canvas.js
@@ -35128,6 +35128,10 @@ var import_earcut2 = __toESM(require_earcut(), 1);
 extensions.add(browserExt, webworkerExt);
 
 // pixi_canvas.ts
+var color_dark_slate_blue = "#24478e";
+var color_white = "#ffffff";
+var color_slate_blue = "#3d7af3";
+var color_dark_violet_with_x = "0x002ca9";
 var PixiController = class {
   app;
   // -- FastWave-specific --
@@ -35151,7 +35155,7 @@ var PixiController = class {
     this.timeline_getter = timeline_getter;
   }
   async init(parent_element) {
-    await this.app.init({ background: "DarkSlateBlue", antialias: true, resizeTo: parent_element });
+    await this.app.init({ background: color_dark_slate_blue, antialias: true, resizeTo: parent_element });
     parent_element.appendChild(this.app.canvas);
   }
   // Default automatic Pixi resizing according to the parent is not reliable 
@@ -35284,7 +35288,7 @@ var VarSignalRow = class {
   signal_blocks_container = new Container();
   label_style = new TextStyle({
     align: "center",
-    fill: "White",
+    fill: color_white,
     fontSize: 16,
     fontFamily: '"Courier New", monospace'
   });
@@ -35304,7 +35308,7 @@ var VarSignalRow = class {
     this.rows_container.addChild(this.row_container);
     this.row_container_background = new Sprite();
     this.row_container_background.texture = Texture.WHITE;
-    this.row_container_background.tint = "0x550099";
+    this.row_container_background.tint = color_dark_violet_with_x;
     this.row_container_background.height = this.row_height;
     this.row_container.addChild(this.row_container_background);
     this.row_container.addChild(this.signal_blocks_container);
@@ -35330,7 +35334,7 @@ var VarSignalRow = class {
       signal_block.x = timeline_block.x;
       this.signal_blocks_container.addChild(signal_block);
       const gap_between_blocks = 2;
-      const background = new Graphics().rect(gap_between_blocks / 2, 0, timeline_block.width - gap_between_blocks, timeline_block.height).fill("SlateBlue");
+      const background = new Graphics().rect(gap_between_blocks / 2, 0, timeline_block.width - gap_between_blocks, timeline_block.height).fill(color_slate_blue);
       signal_block.addChild(background);
       if (timeline_block.label !== void 0) {
         const label = new Text();
diff --git a/frontend/typescript/pixi_canvas/pixi_canvas.ts b/frontend/typescript/pixi_canvas/pixi_canvas.ts
index ea1ea42..208875b 100644
--- a/frontend/typescript/pixi_canvas/pixi_canvas.ts
+++ b/frontend/typescript/pixi_canvas/pixi_canvas.ts
@@ -1,5 +1,17 @@
 import { Application, Text, Graphics, Container, TextStyle, Sprite, Texture } from "pixi.js";
 
+// const color_dark_slate_blue = 'DarkSlateBlue'
+const color_dark_slate_blue = '#24478e'  // oklch(41.43% 0.125 262.26)'
+
+// const color_white = 'White'
+const color_white = '#ffffff'   // oklch(100% 3.5594404384177905e-8 105.88)
+
+// const color_slate_blue = 'SlateBlue'
+const color_slate_blue = '#3d7af3'  // oklch(60.45% 0.194 262.26)
+
+// const color_dark_violet_with_x = '0x550099'   // oklch(37.6% 0.201 299.56)
+const color_dark_violet_with_x = '0x002ca9'   // oklch(37.6% 0.201 263.53)
+
 // @TODO sync with Rust and `tauri_glue.ts`
 type Timeline = {
     blocks: Array<TimelineBlock>
@@ -69,7 +81,7 @@ export class PixiController {
     }
 
     async init(parent_element: HTMLElement) {
-        await this.app.init({ background: 'DarkSlateBlue', antialias: true, resizeTo: parent_element });
+        await this.app.init({ background: color_dark_slate_blue, antialias: true, resizeTo: parent_element });
         parent_element.appendChild(this.app.canvas);
     }
 
@@ -221,7 +233,7 @@ class VarSignalRow {
     signal_blocks_container = new Container();
     label_style = new TextStyle({
         align: "center",
-        fill: "White",
+        fill: color_white,
         fontSize: 16,
         fontFamily: '"Courier New", monospace',
     });    
@@ -258,7 +270,7 @@ class VarSignalRow {
         // row background
         this.row_container_background = new Sprite();
         this.row_container_background.texture = Texture.WHITE;
-        this.row_container_background.tint = '0x550099';
+        this.row_container_background.tint = color_dark_violet_with_x;
         this.row_container_background.height = this.row_height;
         this.row_container.addChild(this.row_container_background);
 
@@ -300,7 +312,7 @@ class VarSignalRow {
             const gap_between_blocks = 2;
             const background = new Graphics()
                 .rect(gap_between_blocks / 2, 0, timeline_block.width - gap_between_blocks, timeline_block.height)
-                .fill('SlateBlue');
+                .fill(color_slate_blue);
             signal_block.addChild(background);
 
             // label
diff --git a/public/favicon/android-chrome-192x192.png b/public/favicon/android-chrome-192x192.png
new file mode 100644
index 0000000..d32e26b
Binary files /dev/null and b/public/favicon/android-chrome-192x192.png differ
diff --git a/public/favicon/android-chrome-512x512.png b/public/favicon/android-chrome-512x512.png
new file mode 100644
index 0000000..ca74059
Binary files /dev/null and b/public/favicon/android-chrome-512x512.png differ
diff --git a/public/favicon/apple-touch-icon.png b/public/favicon/apple-touch-icon.png
new file mode 100644
index 0000000..5cd545a
Binary files /dev/null and b/public/favicon/apple-touch-icon.png differ
diff --git a/public/favicon/browserconfig.xml b/public/favicon/browserconfig.xml
new file mode 100644
index 0000000..2387f29
--- /dev/null
+++ b/public/favicon/browserconfig.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+    <msapplication>
+        <tile>
+            <square150x150logo src="/_api/public/favicon/mstile-150x150.png"/>
+            <TileColor>#00a300</TileColor>
+        </tile>
+    </msapplication>
+</browserconfig>
diff --git a/public/favicon/favicon-16x16.png b/public/favicon/favicon-16x16.png
new file mode 100644
index 0000000..c4c1dd2
Binary files /dev/null and b/public/favicon/favicon-16x16.png differ
diff --git a/public/favicon/favicon-32x32.png b/public/favicon/favicon-32x32.png
new file mode 100644
index 0000000..9416396
Binary files /dev/null and b/public/favicon/favicon-32x32.png differ
diff --git a/public/favicon/favicon.ico b/public/favicon/favicon.ico
new file mode 100644
index 0000000..10b5dbe
Binary files /dev/null and b/public/favicon/favicon.ico differ
diff --git a/public/favicon/mstile-150x150.png b/public/favicon/mstile-150x150.png
new file mode 100644
index 0000000..2b398f6
Binary files /dev/null and b/public/favicon/mstile-150x150.png differ
diff --git a/public/favicon/site.webmanifest b/public/favicon/site.webmanifest
new file mode 100644
index 0000000..5de24f6
--- /dev/null
+++ b/public/favicon/site.webmanifest
@@ -0,0 +1,19 @@
+{
+    "name": "",
+    "short_name": "",
+    "icons": [
+        {
+            "src": "/_api/public/favicon/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "/_api/public/favicon/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ],
+    "theme_color": "#ffffff",
+    "background_color": "#ffffff",
+    "display": "standalone"
+}
diff --git a/src-tauri/icons/128x128.png b/src-tauri/icons/128x128.png
index 77e7d23..395e5bb 100644
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diff --git a/src-tauri/icons/128x128@2x.png b/src-tauri/icons/128x128@2x.png
index 0f7976f..57e0eac 100644
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diff --git a/src-tauri/icons/32x32.png b/src-tauri/icons/32x32.png
index 98fda06..874d9dd 100644
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diff --git a/src-tauri/icons/Square107x107Logo.png b/src-tauri/icons/Square107x107Logo.png
index f35d84f..8ee99bf 100644
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diff --git a/src-tauri/icons/Square142x142Logo.png b/src-tauri/icons/Square142x142Logo.png
index 1823bb2..354a96b 100644
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index dc2b22c..b52fbb6 100644
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index 0ed3984..1645f78 100644
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diff --git a/src-tauri/icons/Square30x30Logo.png b/src-tauri/icons/Square30x30Logo.png
index 60bf0ea..fa71070 100644
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diff --git a/src-tauri/icons/Square44x44Logo.png b/src-tauri/icons/Square44x44Logo.png
index 8756459..7d6d273 100644
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index 2c8023c..2bed31c 100644
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index 2c5e603..c70eb7a 100644
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diff --git a/src-tauri/icons/StoreLogo.png b/src-tauri/icons/StoreLogo.png
index 17d142c..37c710d 100644
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diff --git a/src-tauri/icons/android/mipmap-hdpi/ic_launcher.png b/src-tauri/icons/android/mipmap-hdpi/ic_launcher.png
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diff --git a/src-tauri/icons/android/mipmap-hdpi/ic_launcher_foreground.png b/src-tauri/icons/android/mipmap-hdpi/ic_launcher_foreground.png
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diff --git a/src-tauri/icons/android/mipmap-hdpi/ic_launcher_round.png b/src-tauri/icons/android/mipmap-hdpi/ic_launcher_round.png
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diff --git a/src-tauri/icons/android/mipmap-mdpi/ic_launcher.png b/src-tauri/icons/android/mipmap-mdpi/ic_launcher.png
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diff --git a/src-tauri/icons/android/mipmap-mdpi/ic_launcher_round.png b/src-tauri/icons/android/mipmap-mdpi/ic_launcher_round.png
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diff --git a/src-tauri/icons/android/mipmap-xhdpi/ic_launcher.png b/src-tauri/icons/android/mipmap-xhdpi/ic_launcher.png
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index 0000000..01eef14
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index 0000000..6c7dd1c
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diff --git a/src-tauri/icons/android/mipmap-xxhdpi/ic_launcher.png b/src-tauri/icons/android/mipmap-xxhdpi/ic_launcher.png
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diff --git a/src-tauri/icons/icon.icns b/src-tauri/icons/icon.icns
index a2993ad..a73985f 100644
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diff --git a/test_files/components/rust_decoder/.vscode/settings.json b/test_files/components/rust_decoder/.vscode/settings.json
new file mode 100644
index 0000000..b945667
--- /dev/null
+++ b/test_files/components/rust_decoder/.vscode/settings.json
@@ -0,0 +1,10 @@
+{
+    "rust-analyzer.check.overrideCommand": [
+        "cargo",
+        "component",
+        "check",
+        "--workspace",
+        "--all-targets",
+        "--message-format=json"
+    ],
+}