Examine source code of Green Frog

{
  "theme": {
    "images": {
      "theme_frame": "FrogHeader.jpg"
    },
    "colors": {
      "frame": "#0f4a0c",
      "tab_background_text": "#fcf7f7"
    }
  },
  "version": "2.0",
  "name": "Green Frog",
  "manifest_version": 2,
  "description": "Just seeing what this looks like to see if I want to make more of these.\n\nFrog theme with mainly black and green colors.\n\nHope this looks good, Enjoy!"
}