Calc/Writer - Default for Font Colour button now a brown colour - bug or feature?

Problem occured in both Calc and Writer in both version 4.0.4.2 and 4.1.4.2.

On program start-up the Font Colour button on the toolbar is set to a muddy brown colour.

In the past is has been set to Automatic on program start up (which works much better for me)

From 4.0.1.2:

I have the same issue when I open Writer.

Oweng suggested posting here to ask:

Does anyone have views on whether this is a bug or a "feature".

Or is there a setting I've inadvertently changed that I can change back?

Cheers - Mary