Just downloaded and the effect looks great, but I'm having an issue. If I place any other object in the game besides the preset I get this error:
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ERROR in action number 1
of Draw Event for object crt:
Variable <unknown_object>.gui_user_event(100040, 1) not set before reading it.
at gml_Script_anon@3326@gml_Object_crt_Create_0 (line 64) - event_perform(gui_user_event[0], gui_user_event[1]);
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gml_Script_anon@3326@gml_Object_crt_Create_0 (line 64)
gml_Object_crt_Draw_75 (line 4) - crt_apply()
