Examine source code of One Punch Man

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#fade70"
    }
  },
  "version": "2.0",
  "name": "One Punch Man",
  "manifest_version": 2,
  "description": "A simple theme for the GUI with dark color. It has the yellow color text (on the tab) based on our main hero suit!"
}