Examine source code of Fox Color

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fox Color",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-033-cf10aca0d9374ba108ef8e68a5f5e931.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(57, 0, 94)",
      "toolbar_text": "rgb(239, 249, 3)",
      "frame": "rgb(241, 102, 3)",
      "tab_background_text": "rgb(239, 249, 3)",
      "toolbar_field": "rgb(241, 102, 3)",
      "toolbar_field_text": "rgb(57, 0, 94)",
      "tab_line": "rgb(239, 249, 3)",
      "popup": "rgb(57, 0, 94)",
      "popup_text": "rgb(239, 249, 3)",
      "button_background_active": "rgb(57, 0, 94)",
      "button_background_hover": "rgb(207, 101, 25)",
      "icons_attention": "rgb(239, 249, 3)",
      "icons": "rgb(239, 249, 3)",
      "ntp_background": "rgb(241, 102, 3)",
      "ntp_text": "rgb(219, 123, 2)",
      "popup_border": "rgb(239, 249, 3)",
      "popup_highlight": "rgb(241, 102, 3)",
      "tab_background_separator": "rgb(241, 102, 3)",
      "tab_loading": "rgb(57, 0, 94)",
      "tab_selected": "rgb(57, 0, 94)",
      "tab_text": "rgb(241, 102, 3)",
      "toolbar_bottom_separator": "rgb(57, 0, 94)",
      "toolbar_field_border_focus": "rgb(239, 249, 3)",
      "toolbar_field_border": "rgb(57, 0, 94)",
      "toolbar_field_focus": "rgb(57, 0, 94)",
      "toolbar_field_highlight_text": "rgb(57, 0, 94)",
      "toolbar_field_highlight": "rgb(241, 102, 3)",
      "toolbar_field_separator": "rgb(57, 0, 94)",
      "toolbar_field_text_focus": "rgb(241, 102, 3)",
      "toolbar_top_separator": "rgb(241, 102, 3)",
      "toolbar_vertical_separator": "rgb(239, 249, 3)"
    }
  }
}