Examine source code of Au5 - Blue Moon

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#2e2e2e",
      "tab_background_text": "#52b8bf"
    }
  },
  "version": "2.0",
  "name": "Au5 - Blue Moon",
  "manifest_version": 2,
  "description": "Simple blue and black Au5 theme. Made with Inkscape, Blender, and GIMP on Arch Linux."
}