Examine source code of Late Winter Snow

{
  "name": "Late Winter Snow",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "ezgif.com-gif-to-apng.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(135, 52, 16, 1)",
      "toolbar_field_text": "rgba(115, 45, 7, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bf8605e7-093e-406e-97b4-264572d8a73d}"
    }
  }
}