- don't change back to default texture when falling, but rather keep the previous texture
- use a colorized default texture for gaps in the texture
Reviewed-on: VoxeLibre/VoxeLibre#4674
Reviewed-by: the-real-herowl <the-real-herowl@noreply.git.minetest.land>
Co-authored-by: kno10 <erich.schubert@gmail.com>
Co-committed-by: kno10 <erich.schubert@gmail.com>