Merge pull request #484 from JetBrains/macos-sys-theme

Set desktop light/dark theme based on macOS system theme

Author: zsmb13

shared/src/jvmMain/kotlin/org/jetbrains/kotlinconf/main.kt

@@ -33,6 +33,8 @@ class JvmLogger : Logger {
 fun main() {
     initApp(JvmLogger(), platformModule, Flags(supportsNotifications = false))
 
+    System.setProperty("apple.awt.application.appearance", "system")
+
     application {
         Window(
             onCloseRequest = ::exitApplication,