+ // 1) space for sliders
+ sliderSizer->Add( sliderX, sliderHeight );
+ sliderSizer->Add( redSlider, 0, wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL | wxALL, 10 );
+ sliderSizer->Add( greenSlider, 0, wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL | wxALL, 10 );
+ sliderSizer->Add( blueSlider, 0, wxALIGN_RIGHT | wxALIGN_CENTER_VERTICAL | wxALL, 10 );