Thank you for your answer.
I tried that as the first thing, but that didn´t work.

Now I got it - it´s under the menu that points to the gallery.

T

Hello!
I have tried for days to find the css file containing the orange frame color on imagethumb hover.

.AG_classic .ag_imageThumb:hover { inline:99
background-color: rgb(254, 168, 4);
}

Could some one please tell me where to change that color
?

Kind regards
Thomas