Examine source code of New Eden

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ffffff",
      "tab_background_text": "#2e1600"
    }
  },
  "version": "2.0",
  "name": "New Eden",
  "manifest_version": 2,
  "description": "A buncha pretty colours that I decided to splash onto a blank digital canvas. Messed around with brushes in Photoshop. The colours remind me of life's diversity, so...\"New Eden\"? Hope you like it!"
}