YesNoQuestion - Make foreground color customizable

[principis]

Feature request

Make foreground color of the YesNoQuestion text customizable.

Description

The default EmphasiesColor is in some environments difficult to read and it's currently impossible to change.

Version 0.5.2

[lastunicorn]

I'll make a hot fix.

[lastunicorn]

I released a new version: 0.5.3

It has two new properties to set foreground and background colors for the question text.
Also, ForegroundColor and BackgroundColor properties are used now to display the rest of the control (the list of possible answers). They were not used until now in this control.

[principis]

Great, thanks! :)