GetSize Method (NRibbonCollapsiblePanel)
Overriden to return a width equal to the width of the large state and height equal to the larger height among large and medium state when requested for large state, because for the collapsible panel the medium state might have larger height than the large state.
Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)