Examine source code of Colorful Leaf Transparent

{
  "manifest_version": 2,
  "version": "2.2",
  "name": "Colorful Leaf Transparent",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.5)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(234, 234, 234, 0.95)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(248, 112, 140, 0)",
      "popup": "rgba(234, 234, 234, 0.95)",
      "popup_text": "rgb(26, 25, 24)",
      "popup_border": "rgb(222, 218, 212)",
      "tab_loading": "rgba(248, 112, 140, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c99b5d8c-6b50-4c88-96f0-88b8fbdc6b07}"
    }
  }
}