It's astounding how well put together this is. The graphics are astounding, but what really got my attention was how well documented this is. I've tried using many asset packs in the past, and many times the sheets are simply provided as-is, with no instructions or guides whatsoever. This can make it difficult to determine exact dimensions on sprite sheets and the way the tiles function together.
The creator thought of every possible way to fix that. For example, I was attempting to import one of the character sprites into Gamemaker Studio 2, but I didn't know, as per usual, the frame dimensions on the tile sheet. A quick look in the containing folder revealed a document containing not only dimensions, but each sprite's function and position labeled using columns and rows, respectively. There are also well-labeled folders and example images showing the content in use. In case you somehow need more help, there is also an interactive demo included.
Well done. If there was a way to make images almost plug-and-play, lunarsignals somehow managed to do it. Now if only I can exercise half as much effort and stop being lazy, I might be able to actually make something out of it all...