Examine source code of Red Blue Digital Abstract

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Red Blue Digital Abstract",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(156, 21, 127)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(52, 10, 73)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(83, 68, 142)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(238, 22, 103)",
      "popup": "rgb(155, 74, 148)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(238, 22, 103)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2049e5f8-1c47-4494-a7e0-ee9c74b0a3a8}"
    }
  }
}