Add template icon

__init__.py

@@ -21,6 +21,7 @@ from vse_toolbox import panels
 from vse_toolbox import preferences
 from vse_toolbox import properties
 from vse_toolbox import operators
+from vse_toolbox.constants import ASSET_PREVIEWS
 from vse_toolbox.sequencer_utils import get_active_strip
 
 
@@ -48,6 +49,9 @@ def register():
     bpy.app.handlers.frame_change_post.append(get_active_strip)
 
 def unregister():
+
+    bpy.utils.previews.remove(ASSET_PREVIEWS)
+
     if bpy.app.background:
         return