Some users may use filtering but not have the "clean transparent"
filter enabled in the Minetest engine config. Bake this filter
into all images to (1) avoid the consequences of this (i.e. black
halos), and (2) possibly speed up startup time (the filter will
converge immediately).
- Make texture pure black so it can be used to
darken gravel as well.
- Bolden texture alpha so it can be controlled per
node def with opacity.
- Use lighter effect on sand, heavier on gravel.
New pattern textures by GreenXenith
- Linear and Nexus shapes
- Recipe determined by player looking direction
- Rake same again to clear
- Handle pattern loss on digging, silktouch
