LPub is using an external renderer, e.g. LDView, and basically hands over a MPD/LDR file to the renderer to do its job. The colors in those are coded according to the LDraw definistions.
Theoretiocally you could hand the renderer a file where the "old" parts are put in a neutral color, e.g. gray or something that does not occur in the model.
But LPub does not support it as it is.
As Michael wrote MLCAD ist doing it our of the box as it it using its own renderer, dimming "old" parts.
Gerald
Theoretiocally you could hand the renderer a file where the "old" parts are put in a neutral color, e.g. gray or something that does not occur in the model.
But LPub does not support it as it is.
As Michael wrote MLCAD ist doing it our of the box as it it using its own renderer, dimming "old" parts.
Gerald