Examine source code of Green Gradient theme

{
  "manifest_version": 2,
  "version": "1.0.1",
  "name": "Green Gradient Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgb(190, 245, 245)",
      "toolbar_text": "rgb(93, 76, 245)",
      "frame": "rgb(63, 215, 215)",
      "tab_background_text": "rgb(53, 41, 237)",
      "toolbar_field": "rgb(177, 226, 246)",
      "toolbar_field_text": "rgb(32, 0, 252)",
      "tab_line": "rgb(0, 43, 255)",
      "popup": "rgb(245, 255, 252)",
      "popup_text": "rgb(0, 43, 255)",
      "button_background_active": "rgb(19, 242, 209)",
      "frame_inactive": "rgb(53, 41, 237)",
      "icons": "rgb(90, 77, 245)",
      "ntp_text": "rgb(51, 38, 209)",
      "popup_border": "rgb(77, 100, 245)",
      "popup_highlight_text": "rgb(190, 245, 245)",
      "popup_highlight": "rgb(90, 77, 245)",
      "sidebar_text": "rgb(53, 41, 237)",
      "tab_background_separator": "rgb(177, 226, 246)",
      "tab_loading": "rgb(177, 226, 246)",
      "tab_selected": "rgb(190, 245, 245)",
      "tab_text": "rgb(53, 41, 237)",
      "toolbar_bottom_separator": "rgb(190, 245, 245)",
      "toolbar_field_border_focus": "rgb(190, 245, 245)",
      "toolbar_field_border": "rgb(190, 245, 245)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c77166b5-5d04-4885-91fd-2c6925b861c5}"
    }
  }
}