Examine source code of Grass Abstract

{
  "theme": {
    "images": {
      "theme_frame": "Green_by_Arleau.jpg"
    },
    "colors": {
      "frame": "#0fd626",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Grass Abstract",
  "manifest_version": 2,
  "description": "Just a green grass abstract thing that thought might look cool"
}