[NTG-context] Dummy buff-ver.mkiv question

Hi folks, From http://wiki.contextgarden.net/Verbatim_text#Defining_your_own_set_of_colors and considering the following code snippet from buff-ver.mkiv \definepalet [colorpretty] [ prettyone=colorprettyone, prettytwo=colorprettytwo, prettythree=colorprettythree, prettyfour=colorprettyfour] I conclude that we are limited to a four colors palet for our custom pretty printer… Right or wrong? Ok, from that basis, one solution could be to directly define custom colors within pret-xxx.lua… but how? Any ideas? Renaud