Xpressengine\Plugin\PluginEntity::getIcon PHP Method

    public function getIcon()
    {
        $icon = $this->getMetaData('extra.xpressengine.icon');
        if ($icon === null) {
            return null;
        }
        $path = $this->getPath($icon);
        if (realpath($path) !== false) {
            $class = $this->class;
            $file = $class::asset($icon);
            return $file;
        }
        if (realpath(base_path($icon)) !== false) {
            return asset($icon);
        }
        return null;
    }