Examine source code of Sunset Forest Glow

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sunset Forest",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(11, 11, 40, 0.15)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(6, 4, 26)",
      "tab_background_text": "rgb(238, 217, 255)",
      "toolbar_field": "rgba(43, 31, 91, 0.65)",
      "toolbar_field_text": "rgb(224, 238, 255)",
      "tab_line": "rgba(255, 26, 72, 0.75)",
      "popup": "rgba(28, 21, 57, 0.98)",
      "popup_text": "rgb(237, 236, 255)",
      "button_background_active": "rgba(206, 25, 99, 0.75)",
      "button_background_hover": "rgba(161, 51, 164, 0.48)",
      "frame_inactive": "rgb(6, 4, 26)",
      "icons_attention": "rgb(255, 134, 19)",
      "icons": "rgb(255, 169, 169)",
      "ntp_background": "rgb(12, 9, 24)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(225, 0, 189, 0.5)",
      "popup_highlight_text": "rgb(224, 238, 255)",
      "popup_highlight": "rgba(61, 23, 65, 0.75)",
      "sidebar_border": "rgba(161, 51, 164, 0.48)",
      "sidebar_highlight_text": "rgba(255, 255, 255, 0.98)",
      "sidebar_highlight": "rgba(118, 61, 176, 0.5)",
      "sidebar_text": "rgba(238, 224, 255, 0.96)",
      "sidebar": "rgb(17, 20, 46)",
      "tab_background_separator": "rgb(29, 30, 63)",
      "tab_loading": "rgb(255, 134, 19)",
      "tab_selected": "rgba(124, 1, 60, 0.75)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(132, 0, 180, 0.5)",
      "toolbar_field_border_focus": "rgba(251, 28, 148, 0.5)",
      "toolbar_field_border": "rgba(232, 0, 215, 0.41)",
      "toolbar_field_focus": "rgba(24, 18, 51, 0.98)",
      "toolbar_field_highlight_text": "rgb(0, 0, 0)",
      "toolbar_field_highlight": "rgba(251, 122, 174, 0.5)",
      "toolbar_field_separator": "rgba(225, 0, 189, 0.5)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgba(61, 23, 65, 0)",
      "toolbar_vertical_separator": "rgba(61, 23, 65, 0.75)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{582192d3-b236-41ee-85fd-b5c0b5f101d4}"
    }
  }
}