Examine source code of Teruel Snow Mobile Theme

{
  "manifest_version": 3,
  "name": "Teruel Snow Mobile Theme",
  "version": "1.0",
  "description": "Animated snow over a dark Teruel Mudéjar skyline, optimized for Firefox mobile. by pp4mnk.",
  "author": "pp4mnk",
  "theme": {
    "images": {
      "theme_frame": "images/teruel_snow_mobile_header.png"
    },
    "colors": {
      "frame": [
        5,
        8,
        20
      ],
      "tab_text": [
        242,
        233,
        218
      ],
      "toolbar": [
        8,
        12,
        30
      ],
      "toolbar_text": [
        242,
        233,
        218
      ],
      "toolbar_field": [
        16,
        20,
        40
      ],
      "toolbar_field_text": [
        242,
        233,
        218
      ],
      "tab_background_text": [
        210,
        198,
        182
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    }
  },
  "icons": {
    "128": "images/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "teruel-snow-mobile@pp4mnk"
    }
  }
}