Examine source code of Colorful hydrangeas

{
  "name": "hydrangeas",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "cẩm tú cầu 24.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(83, 148, 141, 1)",
      "bookmark_text": "rgba(77, 164, 184, 1)",
      "tab_line": "rgba(194, 110, 110, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7af5646b-6191-4ca7-9c2a-833143babdd3}"
    }
  }
}