Examine source code of cool theme for real

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "cool theme for real",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(19, 97, 143)",
      "toolbar_text": "rgb(131, 242, 222)",
      "frame": "rgb(84, 92, 98)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(84, 92, 98)",
      "tab_line": "rgb(131, 242, 222)",
      "popup": "rgb(84, 92, 98)",
      "popup_text": "rgb(131, 242, 222)",
      "tab_loading": "rgb(131, 242, 222)"
    }
  }
}