Icons: brand blue (#6190E5) for in-app sonar logo and window/taskbar icon; recolor icon.png, ship as window icon

app/src/main/kotlin/com/shonar/desktop/Main.kt

@@ -32,6 +32,8 @@ import androidx.compose.ui.input.key.type
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.unit.Density
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.graphics.painter.BitmapPainter
+import androidx.compose.ui.graphics.toComposeImageBitmap
 import androidx.compose.ui.window.Window
 import androidx.compose.ui.window.application
 import androidx.compose.ui.window.rememberWindowState
@@ -82,8 +84,15 @@ fun main() = application {
         mgr.addKeyEventDispatcher(disp)
         onDispose { mgr.removeKeyEventDispatcher(disp) }
     }
+    val frameIcon = object {}.javaClass.getResourceAsStream("/icon.png")?.use {
+        // Launcher/taskbar icon — brand blue ping, same as the in-app
+        // SonarLogo (icon.png shipped in resources).
+        BitmapPainter(org.jetbrains.skia.Image.makeFromEncoded(it.readBytes())
+            .toComposeImageBitmap())
+    }
     Window(
         onCloseRequest = ::exitApplication,
+        icon = frameIcon,
         title = "SHONAR Desktop" + run {
             // Build stamp so "which window is this?" is answerable at a glance.
             val jar = java.io.File(

app/src/main/kotlin/com/shonar/desktop/Theme.kt

@@ -150,6 +150,11 @@ object Shonar {
     val BrandTeal = Color(0xFF5EEAD4)
     val BrandTealDeep = Color(0xFF4FD1C5)
 
+    /** Brand blue for the logo + launcher icon (same family as the
+     *  theme accent; identical value in both themes). */
+    val BrandBlue = Color(0xFF6190E5)
+    val BrandBlueDeep = Color(0xFF2A63B4)
+
     /** Pink-red recording highlight (see [ShonarPalette.highlight]). */
     val Highlight: Color @Composable get() = LocalPalette.current.highlight
     val HighlightTint: Color @Composable get() = LocalPalette.current.highlightTint
@@ -324,14 +329,14 @@ fun ShonarTheme(
 /**
  * The SHONAR sonar-ping logo — same geometry as the brand's launcher
  * ic_launcher_foreground.xml: a center dot with quarter arcs ringing out
- * (teal upper-right, teal-dark lower-left), 108-unit viewport.
+ * (blue upper-right, blue-dark lower-left), 108-unit viewport.
  */
 @Composable
 fun SonarLogo(size: Dp = 32.dp, modifier: Modifier = Modifier) {
-    // Brand teal always — the logo keeps its identity in both themes;
-    // hoist reads out of the Canvas draw lambda.
-    val accent = Shonar.BrandTeal
-    val accentStrong = Shonar.BrandTealDeep
+    // Brand blue — same #6190E5 as the launcher icon and the theme's
+    // interactive accent, per the user's request (Sep 21).
+    val accent = Shonar.BrandBlue
+    val accentStrong = Shonar.BrandBlueDeep
     Canvas(modifier = modifier.size(size)) {
         val s = this.size.minDimension / 108f
         fun c(x: Float, y: Float) = Offset(x * s, y * s)