Color picker added, does not function yet

.vscode/launch.json

@@ -0,0 +1,45 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug executable 'keyboard_control_software'",
+            "cargo": {
+                "args": [
+                    "build",
+                    "--bin=keyboard_control_software",
+                    "--package=keyboard_control_software"
+                ],
+                "filter": {
+                    "name": "keyboard_control_software",
+                    "kind": "bin"
+                }
+            },
+            "args": [],
+            "cwd": "${workspaceFolder}"
+        },
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug unit tests in executable 'keyboard_control_software'",
+            "cargo": {
+                "args": [
+                    "test",
+                    "--no-run",
+                    "--bin=keyboard_control_software",
+                    "--package=keyboard_control_software"
+                ],
+                "filter": {
+                    "name": "keyboard_control_software",
+                    "kind": "bin"
+                }
+            },
+            "args": [],
+            "cwd": "${workspaceFolder}"
+        }
+    ]
+}

src/main.rs

@@ -5,7 +5,7 @@ extern crate json;
 use colored::Colorize;
 use std::path::Path;
 
-use gtk::prelude::*;
+use gtk::{prelude::*, Window};
 use gtk::{Application, ApplicationWindow, Button, ListBox};
 
 #[derive(Debug)]
@@ -159,6 +159,22 @@ fn build_ui(app: &Application) {
             .build();
 
         button.connect_clicked(move |button| {
+            let color = gtk::ColorChooserDialog::builder()
+                .default_width(400)
+                .default_height(200)
+                .name("Color picker")
+                .visible(true)
+                .use_alpha(true)
+                .use_header_bar(1)
+                .hide_on_close(true)
+                .build();
+
+            color.display();
+
+            color.connect_color_activated(move |color, rgba| {
+                println!("The selected color is: {}", rgba);
+            });
+
             println!("The label of the button is {}", button.label().unwrap());
         });