Examine source code of Environmental Health

{
  "name": "Environmental Health",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "photo-of-mountains-during-daytime-2937148 - Copy.jpg"
    },
    "colors": {
      "frame": "rgba(80, 199, 96, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)"
    }
  }
}