I am using keyboard shortcuts to move and resize windows to the "top left quarter" and "top right quarter" of my current monitor. The windows resize and move correctly, but it leaves a small gap between the window and toolbar. This doesn't happen if I use the "Snap to top left" and "Snap to top right" and drag the window titlebar to the top left/top right corners.
If I send windows to the bottom, there are no gaps between the bottom of the screen and the window.
Why is this gap happening, and how do I fix it? It causes a slight overlap between the top and bottom windows as well (e.g. window to top right quarter, window to bottom right quarter" - small overlap).