diff --git a/lib/private/Activity/Manager.php b/lib/private/Activity/Manager.php
index a8810a3e16..bbb6f69415 100644
--- a/lib/private/Activity/Manager.php
+++ b/lib/private/Activity/Manager.php
@@ -57,6 +57,9 @@ class Manager implements IManager {
 	/** @var int */
 	protected $formattingObjectId;
 
+	/** @var bool */
+	protected $requirePNG;
+
 	/** @var string */
 	protected $currentUserId;
 
@@ -465,6 +468,20 @@ class Manager implements IManager {
 			&& $this->formattingObjectId === $this->request->getParam('object_id');
 	}
 
+	/**
+	 * @param bool $status Set to true, when parsing events should not use SVG icons
+	 */
+	public function setRequirePNG($status) {
+		$this->requirePNG = $status;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getRequirePNG() {
+		return $this->requirePNG;
+	}
+
 	/**
 	 * @param string $app
 	 * @param string $text
diff --git a/lib/public/Activity/IManager.php b/lib/public/Activity/IManager.php
index f5b495807c..4cdea0e2f7 100644
--- a/lib/public/Activity/IManager.php
+++ b/lib/public/Activity/IManager.php
@@ -206,6 +206,18 @@ interface IManager {
 	 */
 	public function isFormattingFilteredObject();
 
+	/**
+	 * @param bool $status Set to true, when parsing events should not use SVG icons
+	 * @since 12.0.1
+	 */
+	public function setRequirePNG($status);
+
+	/**
+	 * @return bool
+	 * @since 12.0.1
+	 */
+	public function getRequirePNG();
+
 	/**
 	 * @param string $app
 	 * @param string $text