Examine source code of Purple-Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Purple-Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 32)",
      "toolbar_text": "rgb(245, 7, 245)",
      "frame": "rgb(0, 0, 32)",
      "tab_background_text": "rgb(217, 16, 217)",
      "toolbar_field": "rgb(0, 0, 48)",
      "toolbar_field_text": "rgb(217, 16, 217)",
      "tab_line": "rgb(217, 16, 217)",
      "popup": "rgb(0, 0, 32)",
      "popup_text": "rgb(217, 16, 217)",
      "tab_loading": "rgb(217, 16, 217)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{88d8ceb1-23b1-4514-979f-f785c6629af5}"
    }
  }
}