Some time back I altered some setting on my desktop PC desktop to improve the legibility and I think this has affected most if not all of my programs. An unforeseen consequence has been that the complete colour palette seems to have been removed, I can have any (background) colour I want as long as it is white. This has affected the colour of the font as well. I have attached a very simple Excel spreadsheet. The first two columns have a coloured background, the second two a coloured font. Except that you would not know it.
Any idea what the cause is and what I can do about it?
Thanks