Examine source code of Quiet tech

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "orange",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgba(113, 154, 75, 0.13)",
      "toolbar_text": "rgb(245, 75, 41)",
      "frame": "rgb(201, 197, 197)",
      "tab_background_text": "rgb(245, 78, 41)",
      "toolbar_field": "rgba(29, 153, 110, 0.13)",
      "toolbar_field_text": "rgb(245, 78, 41)",
      "tab_line": "rgb(176, 49, 21)",
      "popup": "rgba(198, 176, 186, 0.82)",
      "popup_text": "rgb(245, 78, 41)",
      "button_background_active": "rgba(109, 171, 50, 0.57)",
      "button_background_hover": "rgba(109, 171, 50, 0.57)",
      "icons_attention": "rgba(245, 78, 41, 0.65)",
      "icons": "rgb(216, 70, 39)",
      "ntp_background": "rgba(29, 153, 79, 0.66)",
      "ntp_text": "rgb(245, 78, 41)",
      "popup_border": "rgb(245, 75, 41)",
      "popup_highlight_text": "rgba(103, 137, 74, 0.32)",
      "popup_highlight": "rgba(245, 75, 41, 0.61)",
      "tab_background_separator": "rgb(245, 78, 41)",
      "tab_loading": "rgba(49, 165, 109, 0.66)",
      "tab_selected": "rgba(103, 137, 74, 0.32)",
      "tab_text": "rgb(155, 46, 22)",
      "toolbar_bottom_separator": "rgb(245, 78, 41)",
      "toolbar_field_border_focus": "rgb(245, 78, 41)",
      "toolbar_field_border": "rgb(126, 38, 19)",
      "toolbar_field_focus": "rgba(49, 165, 109, 0.66)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgba(140, 35, 13, 0.61)",
      "toolbar_field_separator": "rgb(126, 38, 19)",
      "toolbar_field_text_focus": "rgba(245, 75, 41, 0.61)",
      "toolbar_top_separator": "rgb(155, 46, 22)",
      "toolbar_vertical_separator": "rgb(155, 46, 22)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{763b8452-eb58-42ba-8acf-b74deb646062}"
    }
  }
}