Yes it can on release 0.91, but there appears to be a bug in how it works. Here is what I found..
*When you hold the left click button on the top held down, the right side shrinks. It can shrink quite small which is a nice feature but it looks buggy.
*When you hold the left click button on the right side, the bottom starts to shrink upwards
*When you try to adjust the menu size when a custom image loaded then it start menu freezes. If you want to adjust size turn off custom image then turn it back on.
The menu looks good when adjusted just right, but getting it to where you want it will be a bit of a buggy experience.