bottom right intersection when both scrollbars present in WindowList is not rendered as ColorListBox color but black

[Corin-EU]

IceWM built from latest GIT version r.6d4bf7a8

Although commit 5d83fb5 fixed the issue of the non rendering in WindowList of the horizontal scrollbar unless the vertical scrollbar was also present, the issue of the bottom right square at the intersection between the bottom of the vertical scrollbar and the right end of the horizontal scrollbar being just a black square and not the color of the background of the WindowlList (ColorListBox in default.theme) is still present.

[Corin-EU]

Was doing some further testing on IceWM latest and noticed that the release commit had changed to #af1fddd with the fix for this issue.

Testing on a number of different themes shows that the black square is now gone and the square has the color of the scrollbar trough, a better choice than the color of the WindowList background its-self.

Thank you for this very fast resolution of the issue.