Leven: Fix `white` default button text color on frontend.

leven/inc/wpcom-colors.php

@@ -15,19 +15,28 @@ add_color_rule( 'bg', '#f7f7f6', array(
 	// Text-color
 	array( '.a8c-posts-list-item__featured span,
 			.sticky-post,
+			.button,
+			button,
+			button[data-load-more-btn],
+			input[type="submit"],
+			.wp-block-button__link,
+			.wp-block-file__button,
+			.a8c-posts-list__view-all,
+			.wp-block-button:not(.is-style-outline) a.wp-block-button__link,
+			.wp-block-button:not(.is-style-outline) .wp-block-button__link,
+			.wp-block-button:not(.is-style-outline) .wp-block-button__link:active,
+			.wp-block-button:not(.is-style-outline) .wp-block-button__link:focus,
+			.wp-block-button:not(.is-style-outline) .wp-block-button__link:hover,
+			.wp-block-button:not(.is-style-outline) .wp-block-button__link:visited,
+			body .widget_eu_cookie_law_widget #eu-cookie-law.negative,
+			body .widget_eu_cookie_law_widget #eu-cookie-law input.accept,
 			.wp-block-cover-image:not([class*="background-color"]) .wp-block-cover-image-text,
 			.wp-block-cover-image:not([class*="background-color"]) .wp-block-cover-text,
 			.wp-block-cover-image:not([class*="background-color"]) .wp-block-cover__inner-container,
 			.wp-block-cover:not([class*="background-color"]) .wp-block-cover-image-text,
 			.wp-block-cover:not([class*="background-color"]) .wp-block-cover-text,
 			.wp-block-cover:not([class*="background-color"]) .wp-block-cover__inner-container,
-			.wp-block-pullquote.is-style-solid-color,
-			.wp-block-button.is-style-default a.wp-block-button__link,
-			.wp-block-button.is-style-default .wp-block-button__link:active, 
-			.wp-block-button.is-style-default .wp-block-button__link:focus, 
-			.wp-block-button.is-style-default .wp-block-button__link:hover, 
-			.wp-block-button.is-style-default .wp-block-button__link:visited,
-			body .widget_eu_cookie_law_widget #eu-cookie-law.negative', 'color' ),
+			.wp-block-pullquote.is-style-solid-color', 'color' ),
 
 	/**
 	 * Utility Classes