Small parts of controls are not being rendered when I'm resizing things that depend on idealWidth.
The calculated width and height apparently are smaller than what they should be in order to render everything, or alternatively they are calculated well and the problem is with the actual rendering, or I'm missing something again 
When you resize the window to be small enough the yellow line at the top disappears. If you resize the window slowly you'll notice the top part of the texture is gradually cropped more and more.