Examine source code of Blue paysage

{
  "name": "Blue",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Logo Frifox.jpeg"
    },
    "colors": {
      "frame": "rgba(9, 81, 237, 1)",
      "tab_background_text": "rgba(235, 244, 245, 1)",
      "bookmark_text": "rgba(250, 250, 250, 1)",
      "toolbar_field": "rgba(204, 33, 33, 0)",
      "toolbar_field_text": "rgba(83, 162, 214, 0.7)"
    }
  }
}