**''[BC:''** ''[[brightness|<Brightness>]],[[contrast|<Contrast>]]'' **'',[[xy|<X>, <Y>]]''** '','' **''[[wh|<W>, <H>]]''**\\


The **''[BC: ]''** modifier changes the colors in the given area of the picture (or in the whole picture, if all the ''<X>, <Y>, <W>, <H>'' parameters are missing). Both the posible brightness and contrast changes are in a scale from -1 to 1. One can specify the values also as percent values - if the ''[[brightness|<Brightness>]]'' and [[contrast|<Contrast>]] values are below -1.0 or above 1.0, then the values will be divided by 100.0 before using them.