OptionalcolorPlate color (default a muted dark slate).
'none' = grid only (today's look); 'solid' = a filled plate under the toolpath.
OptionalopacityPlate opacity in [0,1] (default 1).
OptionaltextureConsumer image drawn on the plate (preloaded bitmap/canvas — never a URL).
Build-plate surface (#185): a filled shaded plate instead of only the bare wireframe grid. Generic and self-drawn — no bundled vendor plate textures (trademark/copyright + bloat). A consumer may drape their own image via
texture.