Examine source code of Minecraft Shaders Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#609efc"
    }
  },
  "version": "2.0",
  "name": "Minecraft Shaders Theme",
  "manifest_version": 2,
  "description": "Hello,\nThis is Minecraft Shaders Theme for Mozzila Firefox (WB)\nPlease like when you saw this is good theme for you !\n\n~Created with pasion and by Piotr Kuzmiuk"
}