Alright, I have tested it extensively on a map with 200+ events, and I used more than 30 transparency events with HUGE sizes for big buildings (we're talking about character images that go up to 2048x768, and everything works great. This plugin has greatly enhanced the quality of my game, due to how exploration and traversal is being aided by the buildings fading out when the player goes behind them. I'm on v21. Amazing plugin