Hi Ramesh,
you can do the following to change the button color after release of the finger on the related characters preview and not already on wipping to the related characters:
1. Go inside ExtendVirtualKeyboard::KeyboardQWERTZ and create a copy of the brick keyView. Lets name it prevKeyView
2. Inside UpdateViewState() replace:
// and release if needed a previous pressed key
if ( keyView != null )
keyView.Pressed = false;
with
// store the previous pressed key
if ( keyView != null )
prevKeyView = keyView;
3. Append inside onRelatedCharactersRelease
if ( prevKeyView != null )
prevKeyView.Pressed = false;
Regards,
Julian