Examine source code of purplegreen

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "PurpleGreen",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(24, 27, 40)",
      "toolbar_text": "rgb(52, 222, 57)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(7, 255, 0)",
      "tab_line": "rgb(52, 222, 57)",
      "popup": "rgb(24, 27, 40)",
      "popup_text": "rgb(225, 106, 255)",
      "popup_border": "rgb(7, 255, 0)",
      "tab_text": "rgb(225, 106, 255)",
      "tab_loading": "rgb(52, 222, 57)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{14c96579-3e51-489e-bd00-547706454510}"
    }
  }
}