In Keen Dreams a 'Loading window' appears before many other windows. This is in effect a pre-loading window window. On modern setups it isn't noticeable, but when the game was released it gave the player some indication of what was occurring in the few seconds it took to load a proper loading window. This window is the same size as most of the other loading windows making it inconspicuous. Changing its size makes its appearance much more obvious.
See also Patch:Level Entry Window
|Patch: Keen Dreams|
Window has a different border
It is possible to make certain windows use a different set of 8x8 tiles for their border. This patch is on the 'text windows' page.