Setup of the window. Choose the 'Frame Settings' item from the 'Properties' menu and select colours and fonts by using the respective submenus or typing in the respective subwindows of the 'WINDOW_PROPERTIES' window.
The selected properties are saved to files '.arb/prop*' in the users home directory by choosing the 'Save properties' item from the 'Properties' menu.
Some changes are only shown when the program is restarted.
If you choose a font different from 8x13bold all windows are resized proportionally. This may lead to undesired overlapping effect (especially if a smaller font is used)
On the other hand this can help people who use a small screen resolution.