nvda

338fb3ef - Revert "displayModel: second try at recording the actual background color for text when a transparant background color is set. (#7440)" (#7803)

Revert "displayModel: second try at recording the actual background color for text when a transparant background color is set. (#7440)" (#7803) This reverts commit edcf518a405823d439f3c5fea23d4434267c3992. As reported in #7440, this again caused a significant performance hit. We must avoid using GetPixel. It is just too slow.