Examine source code of Sapphire-kite

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#05ffc5",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Sapphire-kite",
  "manifest_version": 2,
  "description": "My 2nd theme. Just enough contrast between active tab and background."
}