Examine source code of For Red Wallpapers

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "For Red Wallpapers",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(41, 59, 65)",
      "toolbar_text": "rgb(247, 8, 58)",
      "frame": "rgb(147, 0, 38)",
      "tab_background_text": "rgb(241, 246, 247)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(241, 231, 232)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(211, 203, 212)",
      "tab_loading": "rgb(241, 231, 232)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d7d168d4-e46d-451e-a36b-13d8f02754fe}"
    }
  }
}