Excluded Color not save for Excel options

Created by: Anonymous

Original issue 144 created by @ysavourel on 2010-09-25T11:48:01.000Z:

It seems no color option is saved in the OpenXML options for excel: you can set one or more colors to exclude, but next time you open the configuration those are not selected (and the yaml file has no apparent trace for them).

also: is the excluded color refers to the text color or the background/cell color?