You can resize ingame console.
Variable stuu_consize is console size in percent. E.g. 25 is 25% of screen, 100 is 100% of screen. (50 = default, 5 = minumum, 100 = maximum)
You can increase or reduce console size by 5 percent while you are in it using SHIFT+DOWN or SHIFT+UP.
You can set console size to maximum using SHIFT+END and to minimum using SHIFT+HOME.
You can also set console size to default using CTRL+SHIFT+D.