When not using the WPLanguageControl, the Toolbar's Zoom In and Zoom Out hints are correct. However, when using the WPLanguageControl loaded from Demo Localization, the hints for Zoom In and Out are correct but show up at run time reversed.
In other words, if you look at the XMLData property and view the WPAction for wpaZoomIn and wpaZoomOut, the text is correct. However, the hint at run time shows incorrectly. i.e. The Zoom In icon shows the Zoom Out's hint, and the Zoom Out icon shows the Zoom In's hint.
Hope I explained that well enough.
Delphi XE6
WPTools 7.15
WPLanguageControl GlobalLanguage: EN