Examine source code of Koi Mermaid

{
  "name": "Koi Mermaid",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Koi Mermaid.png"
    },
    "colors": {
      "frame": "rgba(9, 152, 126, 1)",
      "tab_background_text": "rgba(196, 218, 203, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(214, 112, 60, 1)",
      "toolbar_field": "rgba(8, 153, 129, 0.01)",
      "toolbar_field_text": "rgba(196, 218, 203, 1)",
      "tab_line": "rgba(41, 207, 61, 1)"
    }
  }
}