InnerFrame
BRect InnerFrame();
bootMountBox->InnerFrame().top + spacing / 2, spacing, spacing);
autoMountBox->InnerFrame().top + spacing / 2, spacing, spacing);
newHeight += InnerFrame().top;
BRect rect = fSettingsBox->InnerFrame().InsetByCopy(4, 4);
b.top += controlGroup->InnerFrame().top;
b.top += controlGroup->InnerFrame().top;