Examine source code of Red

{
  "manifest_version": 2,
  "name": "Red",
  "version": "1.0",
  "theme": {
    "properties": {
      "color_scheme": "light"
    },
    "colors": {
      "icons": [
        178,
        0,
        55
      ],
      "icons_attention": [
        178,
        0,
        55
      ],
      "tab_background_text": [
        110,
        0,
        31
      ],
      "tab_text": [
        178,
        0,
        55
      ],
      "tab_selected": [
        255,
        255,
        255
      ],
      "tab_line": [
        255,
        126,
        142
      ],
      "tab_loading": [
        76,
        5,
        22
      ],
      "frame": [
        255,
        195,
        201
      ],
      "frame_inactive": [
        255,
        195,
        201
      ],
      "popup": [
        255,
        255,
        255
      ],
      "popup_text": [
        178,
        0,
        55
      ],
      "popup_border": [
        250,
        94,
        117
      ],
      "popup_highlight": [
        255,
        195,
        201
      ],
      "popup_highlight_text": [
        41,
        11,
        15
      ],
      "toolbar": [
        255,
        232,
        234
      ],
      "toolbar_text": [
        178,
        0,
        55
      ],
      "toolbar_field": [
        255,
        255,
        255
      ],
      "toolbar_field_border": [
        255,
        126,
        142
      ],
      "toolbar_field_border_focus": [
        207,
        23,
        72
      ],
      "toolbar_field_focus": [
        255,
        255,
        255
      ],
      "toolbar_field_text": [
        178,
        0,
        55
      ],
      "toolbar_top_separator": [
        255,
        126,
        142
      ],
      "toolbar_bottom_separator": [
        255,
        126,
        142
      ],
      "ntp_background": [
        255,
        232,
        234
      ],
      "ntp_card_background": [
        255,
        255,
        255
      ],
      "ntp_text": [
        76,
        5,
        22
      ],
      "sidebar": [
        255,
        255,
        255
      ],
      "sidebar_border": [
        250,
        94,
        117
      ],
      "sidebar_text": [
        178,
        0,
        55
      ],
      "sidebar_highlight": [
        255,
        195,
        201
      ]
    }
  },
  "dark_theme": {
    "properties": {
      "color_scheme": "dark"
    },
    "colors": {
      "icons": [
        255,
        160,
        170
      ],
      "icons_attention": [
        255,
        160,
        170
      ],
      "tab_background_text": [
        255,
        195,
        201
      ],
      "tab_text": [
        255,
        232,
        234
      ],
      "tab_selected": [
        110,
        0,
        31
      ],
      "tab_line": [
        144,
        0,
        43
      ],
      "tab_loading": [
        255,
        195,
        201
      ],
      "frame": [
        41,
        11,
        15
      ],
      "frame_inactive": [
        41,
        11,
        15
      ],
      "popup": [
        22,
        22,
        22
      ],
      "popup_text": [
        255,
        160,
        170
      ],
      "popup_border": [
        144,
        0,
        43
      ],
      "popup_highlight": [
        144,
        0,
        43
      ],
      "popup_highlight_text": [
        255,
        232,
        234
      ],
      "toolbar": [
        76,
        5,
        22
      ],
      "toolbar_text": [
        255,
        195,
        201
      ],
      "toolbar_field": [
        22,
        22,
        22
      ],
      "toolbar_field_border": [
        110,
        0,
        31
      ],
      "toolbar_field_border_focus": [
        232,
        57,
        92
      ],
      "toolbar_field_focus": [
        22,
        22,
        22
      ],
      "toolbar_field_text": [
        255,
        160,
        170
      ],
      "toolbar_top_separator": [
        110,
        0,
        31
      ],
      "toolbar_bottom_separator": [
        144,
        0,
        43
      ],
      "ntp_background": [
        76,
        5,
        22
      ],
      "ntp_card_background": [
        22,
        22,
        22
      ],
      "ntp_text": [
        255,
        195,
        201
      ],
      "sidebar": [
        22,
        22,
        22
      ],
      "sidebar_border": [
        144,
        0,
        43
      ],
      "sidebar_text": [
        255,
        160,
        170
      ],
      "sidebar_highlight": [
        144,
        0,
        43
      ]
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8de5f8c3-bfc2-443b-9913-7bbadbd1ba0d}"
    }
  }
}