High Contrast mode got updated?

[SuttonWillow]

I use High Contrast mode in Windows 7. The frame of my browser is accordingly high-contrasted,. But suddently, right now, it has also started affecting the colors of the websites themselves, so I watch webs in different colors now than the ones they are meant to display.

If I take out the High Contrast mode, they are normal again, but I cannot make it so it affects windows, but not the webs visited again.

Do you know if this may be caused by a new update or something? Because I didn't touch anything that I am aware of.