feat(icon): make a somewhat fancy custom icon

Cargo.toml

@@ -25,3 +25,4 @@ env_logger = "0.10"
 serde = "1.0.207"
 libpt = { version = "0.6.0", features = ["cli"] }
 clap = { version = "4.5.15", features = ["derive"] }
+image = "0.25.2"

assets/manifest.json

@@ -1,21 +1,15 @@
 {
-  "name": "egui Template PWA",
+  "name": "Rollator PWA",
-  "short_name": "egui-template-pwa",
+  "short_name": "rollator-pwa",
   "icons": [
     {
-      "src": "./icon-256.png",
+      "src": "./icon-256.jpg",
       "sizes": "256x256",
       "type": "image/png"
     },
     {
-      "src": "./maskable_icon_x512.png",
+      "src": "./icon-512.jpg",
       "sizes": "512x512",
-      "type": "image/png",
-      "purpose": "any maskable"
-    },
-    {
-      "src": "./icon-1024.png",
-      "sizes": "1024x1024",
       "type": "image/png"
     }
   ],

src/app.rs

@@ -1,4 +1,5 @@
 use clap::Parser;
+use egui::IconData;
 use libpt::cli::args::HELP_TEMPLATE;
 
 pub const TITLE: &str = "Rollator";
@@ -120,3 +121,21 @@ fn bottom_label(ui: &mut egui::Ui) {
         ui.label(".");
     });
 }
+
+pub(crate) fn load_icon() -> IconData {
+    const ICON_RAW: &[u8; 27618] = include_bytes!("../assets/icon-512.jpg");
+    let (icon_rgba, icon_width, icon_height) = {
+        let image = image::load_from_memory(ICON_RAW)
+            .expect("Failed to open icon path")
+            .into_rgba8();
+        let (width, height) = image.dimensions();
+        let rgba = image.into_raw();
+        (rgba, width, height)
+    };
+
+    IconData {
+        rgba: icon_rgba,
+        width: icon_width,
+        height: icon_height,
+    }
+}

src/main.rs

@@ -8,15 +8,12 @@ mod app;
 fn main() -> eframe::Result {
     env_logger::init(); // Log to stderr (if you run with `RUST_LOG=debug`).
 
+    let icon = app::load_icon();
     let native_options = eframe::NativeOptions {
         viewport: egui::ViewportBuilder::default()
             .with_inner_size([400.0, 300.0])
             .with_min_inner_size([300.0, 220.0])
-            .with_icon(
+            .with_icon(icon),
-                // NOTE: Adding an icon is optional
-                eframe::icon_data::from_png_bytes(&include_bytes!("../assets/icon-256.png")[..])
-                    .expect("Failed to load icon"),
-            ),
         ..Default::default()
     };
     eframe::run_native(