Gtk/Mac: Handle null value for Label.Text
Mac: Bitmap/Icon should always flip image when drawing
Generator.CreateShared will now set the generator of the handler if it is an IWidget
Propegate context change events through TabControl pages
Silently handle errors binding events
Add TabPage constructor to pass single control for the tab and padding
Add Screens
Fix compile error
Font changes from cwensley/corlissdev:
Remove FontFamily.CreateWebFontFamily (use new FontFamily() instead - it is enhanced to support web font families)
FontCache is now moved to Fonts.Cached
Remove Font.ComputeFont/TranslateFontFamily, no longer needed (new FontFamily()/new Font() supports this directly)
Font metrics are now all in points - you must convert to pixels by multiplying by MyForm.Screen.Scale, as different platforms have different DPI's.
WinForms: Implement FontsHandler.FontFamilyAvailable (missed this one)
Wpf: Implement missing FontsHandler.FontFamilyAvailable
Cleanup
DynamicLayout.AddCentered defaults to no padding/spacing to work as expected (similar to AddAutoSized, but centered)
Expose Brush.Cached/ClearCache as public
Pen.Cached can now specify dash style
Update MonoMac to latest (with a few tweaks)
Update InstanceWidget.Initialize to apply default styles if any
TabPage default constructor is needed for JSON for some reason.  Having a default value does not work.
Eliminate warning
Use Image instead of Icon for BaseAction/ImageMenuItem/ToolBarActionItem
Mac: Added new options to ToolBarItemHandler to use a button-style toolbar item, and convert image to grayscale if desired (using styles)
Added WidgetHandler.PostInitialize so that we can apply widget defaults after it has been fully initialized
FontFamily now is case insensitive on all platforms for standard family names
Mac: Use built-in font for cursive