Examine source code of Macha

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Macha",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(49, 63, 44)",
      "toolbar_text": "rgb(187, 203, 178)",
      "frame": "rgb(22, 35, 18)",
      "tab_background_text": "rgb(187, 203, 178)",
      "toolbar_field": "rgb(28, 41, 24)",
      "toolbar_field_text": "rgb(199, 228, 218)",
      "tab_line": "rgb(49, 63, 44)",
      "popup": "rgb(25, 29, 23)",
      "popup_text": "rgb(196, 200, 190)",
      "frame_inactive": "rgb(36, 45, 32)",
      "ntp_background": "rgb(49, 63, 44)",
      "popup_border": "rgba(22, 35, 18, 0)",
      "popup_highlight": "rgb(48, 52, 45)",
      "tab_background_separator": "rgb(49, 63, 44)",
      "tab_loading": "rgb(160, 212, 144)",
      "tab_text": "rgb(225, 228, 218)",
      "toolbar_bottom_separator": "rgb(67, 72, 63)",
      "toolbar_field_border_focus": "rgb(160, 212, 144)",
      "toolbar_field_focus": "rgb(49, 63, 44)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ad7aed65-360e-4305-a6db-08b747965eb9}"
    }
  }
}