If the flowers mod defines "flowers:flower_geranium" (as is the case with my update of 2012-08-01), then those will
be used to get blue pigment powder, and violas will produce violet powder, both of which can be directly used to
create their respective liquid dye colors. If it is not defined (e.g. the user has an older version of the flowers
mod), then violas produce blue dye powder. Violet dye can still be formed by mixing blue and magenta or blue and
red dyes, as before.
Vanessa Ezekowitz