Examine source code of gray flower

{
  "name": "gray flower",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled design (8).png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c3b1f40d-e63e-441d-be9f-c1128f4c433c}"
    }
  }
}