Examine source code of Greedy

{
  "theme": {
    "images": {
      "theme_frame": "Euphonia_by_Josifcopy.jpg"
    },
    "colors": {
      "frame": "#0f0e0e",
      "tab_background_text": "#f4f4f7"
    }
  },
  "version": "2.0",
  "name": "Greedy",
  "manifest_version": 2
}