Examine source code of Breeze (Plasma 5)

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#eff0f1",
      "tab_background_text": "#31363b"
    }
  },
  "version": "2.0",
  "name": "Breeze (Plasma 5)",
  "manifest_version": 2,
  "description": "Matches the default Plasma's Breeze style"
}