Steps to reproduce:
1. Run Modena app
2. Navigate to MenuBar & ContextMenu
3. Click View menu
4. Move mouse cursor over New item
{exception appears}

if not, click somewhere else to deselect menu in menubar and repeat steps.

My exception:
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-color' while resolving lookups for '-fx-background-color' from rule '*.context-menu' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-text-base-color' while resolving lookups for '-fx-text-fill' from rule '*.menu-item>*.label' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-text-base-color' while resolving lookups for '-fx-text-fill' from rule '*.menu-item>*.label' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-text-base-color' while resolving lookups for '-fx-text-fill' from rule '*.menu-item>*.label' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-text-base-color' while resolving lookups for '-fx-text-fill' from rule '*.menu-item>*.label' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-mark-color' while resolving lookups for '-fx-background-color' from rule '*.check-menu-item:checked>*.left-container>*.check' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-text-base-color' while resolving lookups for '-fx-text-fill' from rule '*.menu-item>*.label' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-text-base-color' while resolving lookups for '-fx-text-fill' from rule '*.menu-item>*.label' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-color' while resolving lookups for '-fx-background-color' from rule '*.menu-up-arrow' in stylesheet internal:stylesheet0.11969791619772385.css
May 07, 2013 10:51:31 AM javafx.scene.CssStyleHelper calculateValue
WARNING: Could not resolve '-fx-color' while resolving lookups for '-fx-background-color' from rule '*.menu-down-arrow' in stylesheet internal:stylesheet0.11969791619772385.css