Add thumbnail images

Author: zsmb13

KotlinLogos/KotlinLogos/Assets.xcassets/thumbnail.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "thumbnail.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "[email protected]",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "[email protected]",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

KotlinLogos/KotlinLogos/Assets.xcassets/thumbnail.imageset/thumbnail.png

@@ -31,7 +31,6 @@ class KotlinLogosView : ScreenSaverView {
 
     lazy var sheetController: NSWindowController = ConfigKt.prefController()
 
-    // Note to self, needs restart of Sys Preferences to take effect
     override var hasConfigureSheet: Bool {
         return true
     }