newsupernova/app/code/WeltPixel/Backend/etc/adminhtml/events.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="controller_action_predispatch">
        <observer name="weltpixel_backend" instance="WeltPixel\Backend\Observer\PredispatchAdminActionControllerObserver" />
    </event>
</config>