[Bf-committers] Weight/Vertex Paint

[Campbell Barton]

Hi, Anyone against adding Lighten/Darken to Blenders vertex/weight paint 
options?
Doing some wight painting recently and sometimes you want to paint some 
weights at say 1/4 but not overwrite weights that are alredy set 1/1.
Lighten only paints to points that are darker then the brush, and Darken 
only paints onto colors that are lighter then the brushes colour.

- Cam