Examine source code of Dark Avali Theme

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Dark Avali Theme",
  "description": "A Basic Dark Avali-Based Theme for Firefox ",
  "author": "avali-theme@avali.win",
  "icons": {
    "128": "images/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b6544494-a520-4426-9e77-f4ee0e6ac6a8}"
    }
  },
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(33, 33, 33, 0.9)",
      "toolbar_text": "rgb(204, 204, 204)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(144, 144, 144)",
      "toolbar_field": "rgb(80, 80, 80)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 133, 13)",
      "popup": "rgb(19, 19, 19)",
      "popup_text": "rgb(204, 204, 204)",
      "button_background_active": "rgb(80, 80, 80)",
      "frame_inactive": "rgb(48, 48, 48)",
      "icons": "rgb(255, 133, 13)",
      "ntp_background": "rgba(0, 0, 0, 0)",
      "ntp_text": "rgb(255, 133, 13)",
      "tab_loading": "rgb(255, 133, 13)",
      "toolbar_field_border": "rgb(80, 80, 80)",
      "toolbar_field_highlight_text": "rgb(255, 133, 13)",
      "toolbar_field_separator": "rgba(0, 0, 0, 0)",
      "toolbar_top_separator": "rgba(0, 0, 0, 0)"
    }
  }
}