The 14.0.9 build has been updated with a backport from the development version. The many enhancements include setting key and/or background colours, and displaying level 3 & 4 characters where the xkb/symbols definitions include using the AltGr [ralt] key.
The default use for the \Zb\Z6LWin\Zn and \Zb\Z6RWin\Zn keys on the \Zb\Z6Kvkbd\Zn keyboard is set as modifier keys to map a number of characters or functions and to 'lock' for the next key click - this is to simulate holding down the key on a physical keyboard.
or b] for characters set with xmodmap.
Alternatively, using xmodmap they can map to characters set by a user - this will generate a keycode on a single click.
[2] Alternative text on the num pad keys.
For example:
|Ho|
|me| can be replaced with |H←|, which is a better fit on the keys.
[3] Small icons can be shown on the buttons if the keyboard is to be used at the default size.
[4] Show blank keys where AltGr doesn't produce a character.
3rd and 4th level character sets on a keyboard generally don't cover the full set of keys.
Select this option to see only those characters which AltGr generates.
