Version 4.6.0

system/Image/Imagemagick.php

@@ -56,7 +56,7 @@ class _Imagemagick extends \IPS\Image
 			$this->imagick = new \Imagick( $this->tempFile );
 
 			/* Set quality (if image format is JPEG) */
-			if ( \in_array( mb_strtolower( $this->imagick->getImageFormat() ), array( 'jpg', 'jpeg' ) ) )
+			if ( \in_array( mb_strtolower( $this->imagick->getImageFormat() ), array( 'jpg', 'jpeg', 'webp' ) ) )
 			{
 				$this->imagick->setImageCompressionQuality( (int) \IPS\Settings::i()->image_jpg_quality ?: 85 );
 			}
@@ -343,4 +343,21 @@ class _Imagemagick extends \IPS\Image
 
 		$this->imagick->annotateImage( $draw, 0, 0, 0, $text );
 	}
+	
+	/**
+	 * Return an array of supported extensions
+	 *
+	 * @return	array
+	 */
+	public static function supportedExtensions()
+	{
+		$extensions = static::$imageExtensions;
+		
+		if( \in_array( 'WEBP', \Imagick::queryFormats() ) )
+		{
+			$extensions[] = 'webp';
+		}
+
+		return $extensions;
+	}
 }