\twocolitem{button\_font}{The font used for control buttons: a list comprising point size (integer),
family (string), font style (string), font weight (string) and underlining (0 or 1).}
\twocolitem{label\_font}{The font used for control labels: a list comprising point size (integer),
\twocolitem{button\_font}{The font used for control buttons: a list comprising point size (integer),
family (string), font style (string), font weight (string) and underlining (0 or 1).}
\twocolitem{label\_font}{The font used for control labels: a list comprising point size (integer),