Examine source code of Autumn

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Autumn Path",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 97, 0, 0.3)",
      "toolbar_text": "rgb(227, 182, 152)",
      "frame": "rgb(204, 204, 204)",
      "tab_background_text": "rgb(255, 197, 148)",
      "tab_text": "rgb(255, 229, 207)",
      "toolbar_field": "rgba(247, 235, 228, 0.85)",
      "toolbar_field_text": "rgb(105, 57, 17)",
      "toolbar_field_text_focus": "rgb(168, 84, 13)",
      "toolbar_field_highlight_text": "rgb(105, 57, 17)",
      "toolbar_field_highlight": "rgb(207, 182, 161)",
      "toolbar_field_border_focus": "rgb(207, 182, 161)",
      "tab_line": "rgb(255, 68, 16)",
      "popup": "rgba(255, 242, 237, 0.9)",
      "popup_text": "rgb(105, 57, 17)",
      "popup_highlight": "rgb(207, 182, 161)",
      "popup_highlight_text": "rgb(0,0,0)",
      "popup_border": "rgb(218, 142, 24)",
      "tab_loading": "rgb(255, 68, 16)",
      "bookmark_text": "rgb(227, 182, 152)",
      "ntp_background": "rgb(247, 235, 228)",
      "ntp_text": "rgb(105, 57, 17)",
      "sidebar": "rgb(247, 235, 228)",
      "sidebar_border": "rgb(218, 142, 24)",
      "sidebar_text": "rgb(105, 57, 17)",
      "sidebar_highlight": "rgb(207, 182, 161)",
      "sidebar_highlight_text": "rgb(105, 57, 17)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dca8596e-cba6-40b0-9e9a-328f7e28e221}"
    }
  }
}