Examine source code of Neon Lava

{
  "theme": {
    "images": {
      "theme_frame": "neonlava.jpg"
    },
    "colors": {
      "frame": "#1ced09",
      "tab_background_text": "#590fd1"
    }
  },
  "version": "2.0",
  "name": "Neon Lava",
  "manifest_version": 2,
  "description": "It was a rainy day with a double rainbow hovering on the surface of the water. When the underwater volcano erupted, it was a fantastical site. The waters bubbled and seethed and roiled...but when the heat relented and all was calm, the colors of the rainbow had dissipated into the river, leaving wispy trails of color to the underwater currents."
}