This can include settings such as standard colours, fonts, and user interface element sizes.
See:
wxWidgets docs:
Returns a system colour.
Return: The returned colour is always valid.
Returns a system font.
Return: The returned font is always valid.
Returns the value of a system metric, or -1 if the metric is not supported on the current system.
The value of
Returns the screen type.
The return value is one of the ?wxSystemScreenType enum values.