diff --git a/lib/class-wp-duotone-gutenberg.php b/lib/class-wp-duotone-gutenberg.php
index 433c81f2788ff4..970840b683d270 100644
--- a/lib/class-wp-duotone-gutenberg.php
+++ b/lib/class-wp-duotone-gutenberg.php
@@ -649,7 +649,9 @@ private static function get_css_var( $slug ) {
 	 * Outputs all necessary SVG for duotone filters, CSS for classic themes.
 	 */
 	public static function output_footer_assets() {
-		echo self::get_svg_definitions( self::$used_svg_filter_data );
+		if ( ! empty( self::$used_svg_filter_data ) ) {
+			echo self::get_svg_definitions( self::$used_svg_filter_data );
+		}
 
 		// This is for classic themes - in block themes, the CSS is added in the head via wp_add_inline_style in the wp_enqueue_scripts action.
 		if ( ! wp_is_block_theme() && ! empty( self::$used_global_styles_presets ) ) {
@@ -666,27 +668,29 @@ public static function output_footer_assets() {
 	 * @return array The editor settings with duotone SVGs and CSS custom properties.
 	 */
 	public static function add_editor_settings( $settings ) {
-		if ( ! isset( $settings['styles'] ) ) {
-			$settings['styles'] = array();
-		}
+		if ( ! empty( self::$global_styles_presets ) ) {
+			if ( ! isset( $settings['styles'] ) ) {
+				$settings['styles'] = array();
+			}
 
-		$settings['styles'][] = array(
-			// For the editor we can add all of the presets by default.
-			'assets'         => self::get_svg_definitions( self::$global_styles_presets ),
-			// The 'svgs' type is new in 6.3 and requires the corresponding JS changes in the EditorStyles component to work.
-			'__unstableType' => 'svgs',
-			// These styles not generated by global styles, so this must be false or they will be stripped out in gutenberg_get_block_editor_settings.
-			'isGlobalStyles' => false,
-		);
+			$settings['styles'][] = array(
+				// For the editor we can add all of the presets by default.
+				'assets'         => self::get_svg_definitions( self::$global_styles_presets ),
+				// The 'svgs' type is new in 6.3 and requires the corresponding JS changes in the EditorStyles component to work.
+				'__unstableType' => 'svgs',
+				// These styles not generated by global styles, so this must be false or they will be stripped out in gutenberg_get_block_editor_settings.
+				'isGlobalStyles' => false,
+			);
 
-		$settings['styles'][] = array(
-			// For the editor we can add all of the presets by default.
-			'css'            => self::get_global_styles_presets( self::$global_styles_presets ),
-			// This must be set and must be something other than 'theme' or they will be stripped out in the post editor <Editor> component.
-			'__unstableType' => 'presets',
-			// These styles are no longer generated by global styles, so this must be false or they will be stripped out in gutenberg_get_block_editor_settings.
-			'isGlobalStyles' => false,
-		);
+			$settings['styles'][] = array(
+				// For the editor we can add all of the presets by default.
+				'css'            => self::get_global_styles_presets( self::$global_styles_presets ),
+				// This must be set and must be something other than 'theme' or they will be stripped out in the post editor <Editor> component.
+				'__unstableType' => 'presets',
+				// These styles are no longer generated by global styles, so this must be false or they will be stripped out in gutenberg_get_block_editor_settings.
+				'isGlobalStyles' => false,
+			);
+		}
 
 		return $settings;
 	}
@@ -704,12 +708,14 @@ public static function output_global_styles() {
 	 * Appends the used block duotone filter declarations to the inline block supports CSS.
 	 */
 	public static function output_block_styles() {
-		gutenberg_style_engine_get_stylesheet_from_css_rules(
-			self::$block_css_declarations,
-			array(
-				'context' => 'block-supports',
-			)
-		);
+		if ( ! empty( self::$block_css_declarations ) ) {
+			gutenberg_style_engine_get_stylesheet_from_css_rules(
+				self::$block_css_declarations,
+				array(
+					'context' => 'block-supports',
+				)
+			);
+		}
 	}
 
 	/**