@ toenail: Thanks for discovering the missing files, toenail. I built this release on the last one which was also missing them. They apparently got lost between ego-beta-5 and ego-beta-5b. I've re-upped the current build with the missing images, but if you already have the images from a previous release then you shouldn't need to re-download.
I've tested the current editor by downloading, unzipping, etc. I'm not experiencing any problems. Can you describe what you're experiencing, and the steps you took to make it happen. Maybe post a screenshot.
By the way, thanks for using my editor to make a level. I'm stuck at the mansion.
@GrayFace: Writing to a lua script certainly isn't something a casual player is going to do. The main problem I see with it is that you have to go look up how to do it before you can use it. I'm guilty of this myself with the mappable keys. I'm pondering a better solution for that. Anyhow, I tried out quick deaths (no white, timer 50) and I'm really not sure if it's something I want to implement. The burst of white can sting sometimes, but without it there's no punctuation between lives. It feels like you teleport back to the save point rather than die.
Edit: I forgot to mention a few things about this release. The editor mod scrolls faster when holding down the arrow keys. I'm not sure if the mouse wheel bug is fixed. I'm without a proper mouse at the moment.