max|_) (height|max|_) ](none)
This forces any currently selected region to be automatically
resized at least a certain width and height. All
other surrounding regions will be resized in order to accommodate.
This constraint follows every time the focus command is
used. The resize command can be used to increase either
dimension of a region, but never below what is set with
focusminsize. The underscore ‘_’ is a synonym for
max. Setting a width and height of 0 0
(zero zero) will undo any constraints and allow for manual resizing.
Without any parameters, the minimum width and height is shown.