Examine source code of very brownn

{
  "name": "very brownn",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "@𝐡𝐢𝐝𝐝𝐞𝐧𝐢𝐧𝐭𝐡𝐞𝐬𝐭𝐚𝐫𝐬.jpeg"
    },
    "colors": {
      "frame": "rgba(69, 56, 56, 0.26)",
      "tab_background_text": "rgba(158, 158, 158, 0.77)",
      "toolbar": "rgba(63, 89, 75, 0.16)",
      "bookmark_text": "rgba(179, 184, 178, 0.84)",
      "toolbar_field": "rgba(56, 45, 47, 0.46)",
      "toolbar_field_text": "rgba(166, 146, 135, 1)",
      "tab_line": "rgba(59, 45, 48, 0.96)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d5b9431b-5e16-4fce-be00-6c3f326f7a0e}"
    }
  }
}