diff --git a/README.md b/README.md
index 4d98c5f..d702e3e 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,11 @@
 ---
 
 <p align="center">
-  <img width="800" src="https://github.com/JoyOfHardware/FastWave2.0/assets/18517402/87b7cafb-ccdf-4968-8057-3a19632f227f" alt="fastwave_screenshot" />
+  <img width="800" src="docs/screenshot_firefox.png" alt="fastwave_screenshot_firefox" />
+</p>
+
+<p align="center">
+  <img width="800" src="docs/video_desktop.gif" alt="fastwave_video_desktop" />
 </p>
 
 ---
diff --git a/docs/screenshot_firefox.png b/docs/screenshot_firefox.png
new file mode 100644
index 0000000..bdd69f8
Binary files /dev/null and b/docs/screenshot_firefox.png differ
diff --git a/docs/video_desktop.gif b/docs/video_desktop.gif
new file mode 100644
index 0000000..5935b8b
Binary files /dev/null and b/docs/video_desktop.gif differ
diff --git a/frontend/src/controls_panel.rs b/frontend/src/controls_panel.rs
index 0f77de6..b92e0e1 100644
--- a/frontend/src/controls_panel.rs
+++ b/frontend/src/controls_panel.rs
@@ -5,7 +5,7 @@ use std::mem;
 use std::ops::Not;
 use std::rc::Rc;
 use wellen::GetItem;
-use zoon::{println, *};
+use zoon::*;
 
 const SCOPE_VAR_ROW_MAX_WIDTH: u32 = 480;
 const MILLER_COLUMN_MAX_HEIGHT: u32 = 500;
@@ -212,11 +212,11 @@ impl ControlsPanel {
                             .attr("type", "file")
                             .event_handler(move |_: events::Input| {
                                 let Some(file_list) = dom_element.files().map(gloo_file::FileList::from) else {
-                                    println!("file list is `None`");
+                                    zoon::println!("file list is `None`");
                                     return;
                                 };
                                 let Some(file) = file_list.first().cloned() else {
-                                    println!("file list is empty");
+                                    zoon::println!("file list is empty");
                                     return;
                                 };
                                 let hierarchy_and_time_table = hierarchy_and_time_table.clone();