Examine source code of Star Black Theme

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Black",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "img/background.gif"
      ]
    },
    "properties": {
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(24, 24, 24)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(18, 18, 18)",
      "tab_background_text": "rgb(198, 198, 198)",
      "toolbar_field": "rgb(32, 32, 32)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(49, 49, 49)",
      "popup": "rgb(24, 24, 24)",
      "popup_text": "rgba(255, 255, 255, 0.8)",
      "button_background_active": "rgb(51, 51, 51)",
      "button_background_hover": "rgb(40, 40, 40)",
      "frame_inactive": "rgb(18, 18, 18)",
      "icons_attention": "rgb(148, 0, 255)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(24, 24, 24)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgb(48, 48, 48)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(48, 48, 48)",
      "sidebar_border": "rgb(48, 48, 48)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(48, 48, 48)",
      "sidebar_text": "rgb(255, 255, 255)",
      "tab_background_separator": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)",
      "tab_selected": "rgb(48, 48, 48)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(16, 16, 16)",
      "toolbar_field_border_focus": "rgb(48, 48, 48)",
      "toolbar_field_border": "rgb(48, 48, 48)",
      "toolbar_field_focus": "rgb(17, 17, 17)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(51, 51, 51)",
      "toolbar_field_separator": "rgb(16, 16, 16)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgba(18, 18, 18, 0)",
      "toolbar_vertical_separator": "rgba(255, 255, 255, 0.01)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fb826265-64a1-47c7-8a45-a270f97250e1}"
    }
  }
}