Examine source code of ylw_gry

{
  "name": "ylw_gry",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "william-daigneault-Cd84YdL9px8-unsplash.jpg"
    },
    "colors": {
      "frame": "rgba(77, 75, 46, 1)",
      "tab_background_text": "rgba(250, 238, 0, 1)",
      "toolbar": "rgba(38, 37, 32, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(219, 219, 219, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 230, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8201ee87-b1c5-4595-9e3f-5b2719550bc3}"
    }
  }
}