Matching color between steering wheel, horn pad, shift ball?

[pfraud]

Hi everybody,
Does anyone know if there is a rule for matching interior colors?
It seems to me I have already read something about that, but I cannot find it again:

Any relationship between these components: horn pad, steering wheel, shift ball, ashtray, windows levers pad?

Tks
Pascal

[66andBlue]

Pascal,
see here: https://www.sl113.org/wiki/DataCard/UpholsteryCodes
scroll all the way down, there is an example for codes 241 - 245