Examine source code of Berry Blocks

{
  "name": "X7",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "X7.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(0, 219, 212, 1)",
      "toolbar": "rgba(0, 0, 0, 0.78)",
      "bookmark_text": "rgba(212, 0, 117, 1)",
      "toolbar_field": "rgba(61, 14, 181, 0.47)",
      "toolbar_field_text": "rgba(206, 14, 240, 1)"
    }
  }
}