Examine source code of Kali Linux Obsidian

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Kali",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top",
        "left bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(6, 8, 8, 0.85)",
      "toolbar_text": "rgba(9, 198, 241, 0.97)",
      "frame": "rgb(2, 3, 4)",
      "tab_background_text": "rgb(27, 40, 45)",
      "toolbar_field": "rgba(2, 3, 4, 0.68)",
      "toolbar_field_text": "rgb(224, 228, 229)",
      "tab_line": "rgb(1, 175, 166)",
      "popup": "rgb(27, 40, 45)",
      "popup_text": "rgb(140, 140, 140)",
      "button_background_active": "rgba(27, 40, 45, 0.68)",
      "button_background_hover": "rgba(0, 0, 0, 0.91)",
      "frame_inactive": "rgba(2, 3, 4, 0.78)",
      "icons_attention": "rgba(9, 241, 235, 0.88)",
      "icons": "rgba(1, 119, 139, 0.84)",
      "ntp_background": "rgb(12, 15, 17)",
      "ntp_text": "rgba(181, 181, 181, 0.75)",
      "popup_border": "rgb(35, 205, 179)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgba(140, 140, 140, 0.88)",
      "sidebar_border": "rgba(12, 15, 17, 0.79)",
      "sidebar_highlight_text": "rgba(35, 205, 179, 0.68)",
      "sidebar_highlight": "rgba(35, 205, 179, 0.68)",
      "sidebar_text": "rgb(224, 228, 229)",
      "sidebar": "rgb(17, 12, 12)",
      "tab_background_separator": "rgb(224, 228, 229)",
      "tab_loading": "rgba(95, 99, 98, 0.75)",
      "tab_selected": "rgba(0, 126, 141, 0.12)",
      "tab_text": "rgba(235, 243, 249, 0.87)",
      "toolbar_bottom_separator": "rgba(0, 0, 0, 0.6)",
      "toolbar_field_border_focus": "rgb(2, 3, 4)",
      "toolbar_field_border": "rgba(0, 89, 76, 0.75)",
      "toolbar_field_focus": "rgba(17, 30, 33, 0.89)",
      "toolbar_field_highlight_text": "rgb(0, 0, 0)",
      "toolbar_field_highlight": "rgba(35, 205, 179, 0.38)",
      "toolbar_field_separator": "rgba(140, 140, 140, 0.48)",
      "toolbar_field_text_focus": "rgba(17, 12, 12, 0.79)",
      "toolbar_top_separator": "rgba(81, 81, 81, 0)",
      "toolbar_vertical_separator": "rgba(0, 89, 76, 0.75)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{5959966d-9f3d-4a36-bf48-d526ba46a372}"
    }
  }
}