Examine source code of BSM Foxy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "BSM Foxy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-002-609370e89a219e0548ac5ef6b4a7dd2e.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(214, 245, 255, 0.32)",
      "toolbar_text": "rgb(247, 253, 251)",
      "frame": "rgb(0, 95, 135)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(185, 21, 1)",
      "tab_line": "rgba(255, 193, 0, 0.72)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(77, 41, 79)",
      "tab_selected": "rgba(255, 129, 0, 0.83)",
      "tab_loading": "rgba(255, 193, 0, 0.72)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{555fad40-5009-4431-8a21-5545543efd3d}"
    }
  }
}