Today I've got for you what is likely my first instance of creating an asset pack for Dungeondraft from the outset, rather than the other way around. For those of you unfamiliar with Dungeondraft (and I'd recommend you acquaint yourself), one of its features is the ability to place light sources that can interact with objects and walls you've indicated to block light.
This Light & Shadow Assets pack is designed to:
I have however also packaged this up as a set of standard, downloadable PNG assets for use among anyone not using Dungeondraft too. Obviously the functionality is a little bit impaired, but all of the same image assets are still included and in lieu of colorable options I have gone ahead and made a set for you in red/yellow/blue.
(as of right now, megapack 7 only includes this new pack and will be added to later)