Replace touch PNGs with a vector drawable.

res/drawable/touchpad_plugin_action_24dp.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M9,11.24V7.5C9,6.12 10.12,5 11.5,5S14,6.12 14,7.5v3.74c1.21,-0.81 2,-2.18 2,-3.74C16,5.01 13.99,3 11.5,3S7,5.01 7,7.5C7,9.06 7.79,10.43 9,11.24zM18.84,15.87l-4.54,-2.26c-0.17,-0.07 -0.35,-0.11 -0.54,-0.11H13v-6C13,6.67 12.33,6 11.5,6S10,6.67 10,7.5v10.74c-3.6,-0.76 -3.54,-0.75 -3.67,-0.75c-0.31,0 -0.59,0.13 -0.79,0.33l-0.79,0.8l4.94,4.94C9.96,23.83 10.34,24 10.75,24h6.79c0.75,0 1.33,-0.55 1.44,-1.28l0.75,-5.27c0.01,-0.07 0.02,-0.14 0.02,-0.2C19.75,16.63 19.37,16.09 18.84,15.87z"/>
+</vector>

src/org/kde/kdeconnect/Plugins/MousePadPlugin/MousePadPlugin.java

@@ -61,7 +61,7 @@ public class MousePadPlugin extends Plugin {
 
     @Override
     public Drawable getIcon() {
-        return ContextCompat.getDrawable(context, R.drawable.touchpad_plugin_action);
+        return ContextCompat.getDrawable(context, R.drawable.touchpad_plugin_action_24dp);
     }
 
     @Override