@@ -2638,6 +2638,8 @@ function kses_init() {
  * @since 6.6.0 Added support for `grid-column`, `grid-row`, and `container-type`.
  * @since 6.9.0 Added support for `white-space`.
  * @since 7.1.0 Extended gradient support to allow any single-level nested function.
+ *              Added support for transform functions, `clip-path` basic shapes,
+ *              and URLs in the SVG element reference properties.
  *
  * @param string $css        A string of CSS rules, decoded from an HTML `style` attribute.
  * @param string $deprecated Not used.
@@ -2906,6 +2908,16 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
 
 		'list-style',
 		'list-style-image',
+
+		// SVG presentation properties that accept url() references.
+		'clip-path',
+		'fill',
+		'marker',
+		'marker-end',
+		'marker-mid',
+		'marker-start',
+		'mask',
+		'stroke',
 	);
 
 	/*
@@ -3004,7 +3016,18 @@ function safecss_filter_attr( $css, $deprecated = '' ) {
 			 * Nested functions and parentheses are also removed, so long as the parentheses are balanced.
 			 */
 			$css_test_string = preg_replace(
-				'/\b(?:var|calc|min|max|minmax|clamp|repeat)(\((?:[^()]|(?1))*\))/',
+				'/\b(?:'
+					// General purpose value functions.
+					. 'var|calc|min|max|minmax|clamp|repeat'
+					// Transform functions.
+					. '|matrix|matrix3d|perspective'
+					. '|rotate|rotate3d|rotateX|rotateY|rotateZ'
+					. '|scale|scale3d|scaleX|scaleY|scaleZ'
+					. '|skew|skewX|skewY'
+					. '|translate|translate3d|translateX|translateY|translateZ'
+					// Basic shape functions, as used by `clip-path`.
+					. '|circle|ellipse|inset|path|polygon|rect|shape|xywh'
+				. ')(\((?:[^()]|(?1))*\))/',
 				'',
 				$css_test_string
 			);
 
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '7.2-alpha-63179';
+$wp_version = '7.2-alpha-63180';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.
Original file line number	Diff line number	Diff line change
`@@ -16,7 +16,7 @@`
`16`	`16`	`*`
`17`	`17`	`* @global string $wp_version`
`18`	`18`	`*/`
`19`		`-$wp_version = '7.2-alpha-63179';`
	`19`	`+$wp_version = '7.2-alpha-63180';`
`20`	`20`
`21`	`21`	`/**`
`22`	`22`	`* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.`