Examine source code of HPSL

{
  "name": "HPSL",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "HD-Wallpaper-Slytherin-Aesthetic.jpg"
    },
    "colors": {
      "frame": "rgba(49, 51, 56, 1)",
      "tab_background_text": "rgba(143, 143, 143, 1)",
      "toolbar": "rgba(38, 38, 38, 0.8)",
      "bookmark_text": "rgba(55, 79, 63, 1)",
      "toolbar_field": "rgba(38, 38, 38, 1)",
      "toolbar_field_text": "rgba(55, 79, 63, 1)",
      "tab_line": "rgba(55, 79, 63, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8a1ad21e-5c6d-414b-8b76-6902ce1158f9}"
    }
  }
}