Examine source code of Sassy Mermaid

{
  "name": "Sassy Mermaid",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "sassy mermaid.png"
    },
    "colors": {
      "frame": "rgba(20, 27, 37, 1)",
      "tab_background_text": "rgba(13, 143, 163, 1)",
      "toolbar": "rgba(122, 160, 217, 0)",
      "bookmark_text": "rgba(132, 211, 226, 1)",
      "toolbar_field": "rgba(12, 82, 94, 0)",
      "toolbar_field_text": "rgba(132, 211, 226, 1)",
      "tab_line": "rgba(150, 35, 150, 1)"
    }
  }
}