How do I modify column/row header color?

Back in OpenOffice 2.1 the column and row headers had a nice solid dark grey color. However by the time 3.4.1 came along someone had decided it would be cool to add a color gradient. They left the interior portion (right side on row headers, bottom side on column headers) dark grey but made the other part light grey.

I find the visual clutter distracting, to the point that it sometimes makes it hard to focus on the letters/numbers in the headers. I’m sure it doesn’t bother most people, but for me this aesthetic quirk is interfering with the primary reason for the existence of those headers in the first place.

When LibreOffice forked off of OO this was one of the many “features” that got carried along, and years later it still bugs me.

I would like to change the background color of the column and row headers back to a solid color. Preferably dark grey. Is there any way to do this?

Thanks!

LibreOffice 5.0.0.5

Windows 7 Enterprise

I am very interested in this question since my Desktop computer shows only light grey for ALL the headers! Why?

And why has no one given an answer??

Cross-referencing a similar question:

Fixed in tdf#127508 for v.6.4.