Examine source code of Editorial Shelfline Dusk

{
  "manifest_version": 2,
  "name": "Editorial Shelfline Dusk",
  "version": "1.0",
  "description": "Inspired by quiet bookshelves and the soft light of late editorial hours. Muted tones and steady contrast form a composed backdrop for reading and reflection.",
  "theme": {
    "colors": {
      "frame": "#1f2428",
      "tab_background_text": "#e3e6e8",
      "toolbar": "#2b3136",
      "toolbar_text": "#e3e6e8",
      "toolbar_field": "#f2f3f4",
      "toolbar_field_text": "#1f2428",
      "tab_line": "#6d7782"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{565733bd-21aa-4f59-98cd-aefbdc10a79f}"
    }
  }
}