Examine source code of BELA CRKVA15

{
  "name": "BELA CRKVA15",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(14, 37, 245, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{37f1c22e-7a2e-46b3-81ab-216c3befb519}"
    }
  }
}