Version 4.7.6

applications/core/modules/admin/customization/icons.php

@@ -215,12 +215,12 @@ class _icons extends \IPS\Dispatcher\Controller
 	 */
 	public static function processApplicationIcon( $values, $homeScreen = array(), $homeScreenMaskable = array() )
 	{
-		if( $values['icons_homescreen'] or $values['icons_homescreen_maskable'] )
+		if( ( isset( $values['icons_homescreen'] ) AND $values['icons_homescreen'] ) or ( isset( $values['icons_homescreen_maskable' ] ) AND $values['icons_homescreen_maskable'] ) )
 		{
 			foreach( [ 'icons_homescreen', 'icons_homescreen_maskable' ] as $type )
 			{
 				$setting = [];
-				if( $values[ $type ] )
+				if( isset( $values[ $type ] ) AND $values[ $type ] )
 				{
 					$sizes = array(
 						'android-chrome-36x36' => array(36, 36),