Examine source code of Splattered Paint101

{
  "theme": {
    "images": {
      "theme_frame": "PaintSplatters.jpg"
    },
    "colors": {
      "frame": "#0003a1",
      "tab_background_text": "#07f703"
    }
  },
  "version": "2.0",
  "name": "Splattered Paint101",
  "manifest_version": 2,
  "description": "Paint splatters with a different outside then on the inside."
}