Not sure if this is intentional or not, but there doesn't seem to be a Lua equivalent (short of gui.dwarfmode:Viewport ():set (), which requires significantly more setup to use).
Colors printed by the different gui.* functions of the Lua API seem to me to be incorrect compared to their provided value. I initialy spotted that by trying to draw a rectangle the same color as this ...
Lua is a free and open-source multi-paradigm programming language released under the MIT license. Created in 1993 by Roberto Lerusalimschy, Luiz Henrique de Figueiredo and Waldemar Celes, Lua is a ...