Awesome! Thank you so much!
We are really glad you tried the editor, we though it was pretty fun to experiment with. :)
And of course you didn't figure it out how to share levels, because...we never really explained.
Basically, you need to upload on the comments a snapshot of how the level looks like, so other players can copy the image and play the level. It's sort of bulky, but we will also permantlly add them when we get a few submissions, provided they are solvable but not too easy.
Currently downloading Lightless, we'll comment and rate back, see you in a bit!