The color of the control is not changed by Hugin. It takes the color from the theme. Also a different color is helpful to see the size of the full canvas and so facilitate setting the crop.
** Changed in: hugin Status: New => Opinion -- You received this bug notification because you are a member of Hugin Developers, which is subscribed to Hugin. https://bugs.launchpad.net/bugs/1801543 Title: Distracting white background in OpenGL viewer Status in Hugin: Opinion Bug description: In 2018.0.0.5abfb4de7961 in the OpenGL viewer the area immediately around the images is black, good, but the area on both sides of that area is a very distracting white. Would be better if it was black. To manage notifications about this bug go to: https://bugs.launchpad.net/hugin/+bug/1801543/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~hugin-devs Post to : hugin-devs@lists.launchpad.net Unsubscribe : https://launchpad.net/~hugin-devs More help : https://help.launchpad.net/ListHelp