STEP colors reported differently between 4.7 and 4.8

Hello,

when importing a step file we use its colours to identify boundary parts. It seems that the reported values have changed but I don't understand how and I couldn't find any commit in the repository.

Essentially, with 4.7 a colour [170, 204, 85] would be returned as [102, 153, 23] in 4.8. The latter one seems to align with FreeCAD (off by one, e.g. 103 instead of 102). Full colours (255 and 0) are the same in both versions.

We have some old data that I try to convert. That is why I try to understand what change happened.

Thanks a lot, Johannes