Hi! What do you mean with contrasts? You mean the colors? Currently, there is no way to automatically assign colors to a visualization, although you can use a color palette (look at the class RTPalette).
Cheers, Alexandre > On Feb 20, 2018, at 7:01 AM, abdelghani ALIDRA via Pharo-users > <pharo-users@lists.pharo.org> wrote: > > > From: abdelghani ALIDRA <alidran...@yahoo.fr> > Subject: Roassal : Playing with the contrast > Date: February 20, 2018 at 7:01:20 AM GMT-3 > To: "pharo-users@lists.pharo.org" <pharo-users@lists.pharo.org> > Reply-To: abdelghani ALIDRA <alidran...@yahoo.fr> > > > Hi, > > I am wondering if there is a way to play with the contrast of Roassal > visualisations. > If so, please tell me how :) > > Thank you in advance > Abdelghani > > >