By the way, I done one experiment and find that it's the working way to hide that ugly black bezels on tree LOD:
[spoiler=Picture]
Alpha-Channel stays the same. Background color applied depends only on existing alpha.
Reason of this black bezels is black atlas background. It would be good, if you add a feature to generate tree atlases with correct background, like in TES5LODGen Vanilla Skyrim LOD Billboards (wherefrom I took these colors).
[spoiler=Full screenshots]
Black BG:
Colored BG:
Hello! Can I delete TexGen Output after making a DynDOLOD Output? It seems like all needed textures exist in the DynDOLOD Output atlases. P.s. I didn't see anything about it in tutorials and manual. Maybe I missed.