Examine source code of Beautiful Rey

{
  "manifest_version": 2,
  "browser_specific_settings": {
    "gecko": {
      "id": "{b6d66296-eed6-455a-bfd4-16ae79620107}"
    }
  },
  "version": "3.6",
  "name": "Beautiful Rey",
  "author": "GODIE",
  "description": "Tema Abstracto Oscuro con Transparencias.",
  "icons": {
    "32": "images/icon-32.png"
  },
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/rey.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ],
      "color_scheme": "dark",
      "content_color_scheme": "dark"
    },
    "colors": {
      "frame": "#1f1c31",
      "tab_background_text": "#eaeaea",
      "toolbar": "#1f1c31dc",
      "toolbar_field": "#1a1c3300",
      "toolbar_field_text": "#D7E2EF",
      "toolbar_top_separator": "#90094daa",
      "toolbar_bottom_separator": "#161616",
      "toolbar_field_border": "#eaeaea15",
      "toolbar_field_focus": "#1b182aFC",
      "toolbar_field_border_focus": "#eaeaea20",
      "toolbar_field_highlight": "#3b2c6d",
      "toolbar_field_highlight_text": "#eaeaea",
      "toolbar_field_text_focus": "#e5e5e6",
      "button_background_hover": "#564587bb",
      "button_background_active": "#402b54dd",
      "icons": "#febd60dd",
      "icons_attention": "#febd60",
      "ntp_background": "#1f1c31",
      "ntp_text": "#eaeaea",
      "ntp_card_background": "#2d2a3f",
      "popup": "#1f1c31fc",
      "popup_text": "#ffedcc",
      "popup_border": "#eb016f70",
      "popup_highlight": "#3c2d6c",
      "sidebar": "#1b182a",
      "sidebar_text": "#d3d8db",
      "sidebar_border": "#880847",
      "sidebar_highlight": "#130e22",
      "sidebar_highlight_text": "#febd60",
      "tab_line": "#eb016f",
      "tab_loading": "#eb016f",
      "tab_loading_inactive": "#eb016f",
      "tab_text": "#fafafa"
    }
  }
}