Windows cmake changes.

resources/icons/osx/osx-icons.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+# $1: Input path to an image to use for generating icons.
+# Helper script to generate qtk's icons for OSX given a path to an input PNG.
+sudo apt install icnsutils imagemagick
+
+convert "$1" -resize 32x32 kilroy_32.png
+convert "$1" -resize 16x16 kilroy_16.png
+convert "$1" -resize 48x48 kilroy_48.png
+convert "$1" -resize 128x128 kilroy_128.png
+convert "$1" -resize 256x256 kilroy_256.png
+# For the application bundle in OSX.
+png2icns png2icns kilroy.icns kilroy_*.png
+
+# For the splash image in DMG installers.
+convert "$1" -resize 800x600! kilroy_splash.png