Replace edit PNGs with a vector drawable.

res/drawable/ic_action_image_edit_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="M3,17.25V21h3.75L17.81,9.94l-3.75,-3.75L3,17.25zM20.71,7.04c0.39,-0.39 0.39,-1.02 0,-1.41l-2.34,-2.34c-0.39,-0.39 -1.02,-0.39 -1.41,0l-1.83,1.83 3.75,3.75 1.83,-1.83z"/>
+</vector>

res/layout/activity_runcommand.xml

@@ -18,7 +18,7 @@
         android:layout_height="wrap_content"
         android:layout_gravity="bottom|end"
         android:layout_margin="16dp"
-        android:src="@drawable/ic_action_image_edit"
+        app:srcCompat="@drawable/ic_action_image_edit_24dp"
         app:backgroundTint="@color/primary"
         app:layout_anchor="@id/runcommandslist"
         app:layout_anchorGravity="bottom|end" />