Examine source code of gruvfox medium dark

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "gruvfox medium dark",
  "theme": {
    "colors": {
      "bookmark_text": [
        251,
        241,
        199
      ],
      "button_background_active": [
        80,
        73,
        69
      ],
      "button_background_hover": [
        60,
        56,
        54
      ],
      "icons": [
        235,
        219,
        178
      ],
      "icons_attention": [
        184,
        187,
        38
      ],
      "frame": [
        40,
        40,
        40
      ],
      "frame_inactive": [
        40,
        40,
        40
      ],
      "ntp_background": [
        29,
        32,
        33
      ],
      "ntp_card_background": [
        60,
        56,
        54
      ],
      "ntp_text": [
        235,
        219,
        178
      ],
      "popup": [
        40,
        40,
        40
      ],
      "popup_border": [
        214,
        93,
        14
      ],
      "popup_highlight": [
        254,
        128,
        25
      ],
      "popup_highlight_text": [
        40,
        40,
        40
      ],
      "popup_text": [
        251,
        241,
        199
      ],
      "sidebar": [
        40,
        40,
        40
      ],
      "sidebar_border": [
        40,
        40,
        40
      ],
      "sidebar_highlight": [
        254,
        128,
        25
      ],
      "sidebar_highlight_text": [
        40,
        40,
        40
      ],
      "sidebar_text": [
        251,
        241,
        199
      ],
      "tab_background_separator": [
        40,
        40,
        40
      ],
      "tab_background_text": [
        235,
        219,
        178
      ],
      "tab_line": [
        211,
        134,
        155
      ],
      "tab_loading": [
        215,
        153,
        33
      ],
      "tab_selected": [
        211,
        134,
        155
      ],
      "tab_text": [
        40,
        40,
        40
      ],
      "toolbar": [
        40,
        40,
        40
      ],
      "toolbar_bottom_separator": [
        40,
        40,
        40
      ],
      "toolbar_field": [
        60,
        56,
        54
      ],
      "toolbar_field_border": [
        60,
        56,
        54
      ],
      "toolbar_field_border_focus": [
        254,
        128,
        25
      ],
      "toolbar_field_focus": [
        60,
        56,
        54
      ],
      "toolbar_field_highlight": [
        254,
        128,
        25
      ],
      "toolbar_field_highlight_text": [
        40,
        40,
        40
      ],
      "toolbar_field_text": [
        235,
        219,
        178
      ],
      "toolbar_field_text_focus": [
        251,
        241,
        199
      ],
      "toolbar_top_separator": [
        40,
        40,
        40
      ],
      "toolbar_vertical_separator": [
        60,
        56,
        54
      ]
    },
    "properties": {
      "color_scheme": "dark",
      "content_color_scheme": "dark"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f012a47b-1e57-4f25-936b-bf7ba412b549}"
    }
  }
}