Examine source code of Yellow Summer Flowers

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Yellow Summer Flowers",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg",
        "images/1.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom",
        "left center"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(206, 210, 212, 0.57)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(238, 242, 245)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(253, 246, 126)",
      "popup": "rgb(238, 242, 245)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(253, 246, 126)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c89ceaac-7a8a-4d25-a12e-4ff6f9975f18}"
    }
  }
}