Examine source code of Arc-Dark-Quantum

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#424653",
      "tab_background_text": "#f2f2f2"
    }
  },
  "version": "2.0",
  "name": "Arc-Dark-Quantum",
  "manifest_version": 2,
  "description": "This Theme uses the #2F343F HEX-color the Arc-Dark GTK-3.0 uses (<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/9ade750168a581d8bbe0c74c2c76cb858220967f02f7db5c0b723f84d2bdbfaf/https%3A//github.com/horst3180/Arc-theme%29\">https://github.com/horst3180/Arc-theme)</a>.\nBecause I calculated the color value using unaccurate hex color values from screenshots and installed the \"arc-theme\" package using apt-get, the colors may not be as perfect for you."
}