Update ok_error button to be in the style of changed ok button.

diff --git a/src/XGUI/pictures/button_ok_error.png b/src/XGUI/pictures/button_ok_error.png
index bdb6191e71c2553886a13fca9456b9e7051433f0..5a900e58805925302e27b6fc806fb7b55c76fb7a 100755 (executable)
Binary files a/src/XGUI/pictures/button_ok_error.png and b/src/XGUI/pictures/button_ok_error.png differ