shapedclock example shows a black stripes on clock window if the text scale is 175% in windows setting under the 1920x1980 resolution

Hi , could you please fix a resolution problem. Shapedclock example shows black stripes on it when the text scale in windows display settings is set to 175% and display resolution is set to 1920x1980. I am going to use a custom shaped windows in my project and it really is a big deal for me to make sure that GUI works stable under any resolution and scale settings