Examine source code of pastel cloud

{
  "name": "pastel cloud",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Screen Shot 2022-10-13 at 4.57.20 PM.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c9ef73e-a560-4081-aa98-c5ecaf3dfebb}"
    }
  }
}