Examine source code of Dark blue Water

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#dedede",
      "tab_background_text": "#dedede"
    }
  },
  "version": "2.0",
  "name": "Dark blue Water",
  "manifest_version": 2,
  "description": "It's a simple Persona with dark water and a light font color.\nYour Browser may not be wider than 1440px, which normally should for the most users."
}