Examine source code of projectFLY

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "projectFLY",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(51, 51, 51)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(24, 24, 24)",
      "tab_background_text": "rgb(204, 204, 204)",
      "toolbar_field": "rgba(24, 24, 24, 0.5)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(252, 196, 15)",
      "popup": "rgb(51, 51, 51)",
      "popup_text": "rgb(204, 204, 204)",
      "tab_loading": "rgb(252, 196, 15)"
    }
  }
}