Instagram grid: Update the colors of the cover block

patterns/media-instagram-grid.php

@@ -16,9 +16,9 @@
 <div class="wp-block-group alignfull" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)">
 	<!-- wp:group {"align":"wide","style":{"spacing":{"blockGap":"var:preset|spacing|50"}},"layout":{"type":"grid","minimumColumnWidth":"18rem"}} -->
 	<div class="wp-block-group alignwide">
-		<!-- wp:cover {"overlayColor":"accent-1","isUserOverlayColor":true,"isDark":false,"style":{"dimensions":{"aspectRatio":"1"}}} -->
-		<div class="wp-block-cover is-light">
-			<span aria-hidden="true" class="wp-block-cover__background has-accent-1-background-color has-background-dim-100 has-background-dim"></span>
+		<!-- wp:cover {"overlayColor":"contrast","isUserOverlayColor":true,"isDark":false,"style":{"dimensions":{"aspectRatio":"1"},"elements":{"link":{"color":{"text":"var:preset|color|base"}}}},"textColor":"base"} -->
+		<div class="wp-block-cover is-light has-base-color has-text-color has-link-color">
+			<span aria-hidden="true" class="wp-block-cover__background has-contrast-background-color has-background-dim-100 has-background-dim"></span>
 			<div class="wp-block-cover__inner-container">
 				<!-- wp:group {"style":{"dimensions":{"minHeight":"100%"},"spacing":{"blockGap":"var:preset|spacing|20"}},"layout":{"type":"flex","orientation":"vertical","verticalAlignment":"center","justifyContent":"center"}} -->
 				<div class="wp-block-group" style="min-height:100%"><!-- wp:heading {"fontSize":"large"} -->