anyone noticed also colors on glass of side mirrors ?

[stevends]

Hi

Since a few days I noticed strange colors on the glass of the side mirrors (exterior).
There is a blue spot on top of the glass and at the bottom there is a yellow color. The yellow color is on the whole width of the glass and the blue color is in the center on top of the glass.
Does anyone have the same "problem" and who can explain me what the cause is.

Thanks.

Steven