Help: uses Source Code Pro font for code samples
StackScreenNavigatorItem: added pushTransition and popTransition properties to support custom transitions for individual screens
Help: exported missing 'Migrating legacy Feathers themes' from wiki
ComponentsExplorer: settings screens use custom transitions. moved header children into custom headerFactory functions.
Panel: added title and headerTitleField properties, Alert: fixed title conflict and fixed some infinite validation issues
Examples: migrated from headerProperties.title to just title in PanelScreens
HorizontalLayout, VerticalLayout: justify alignments take minWidth/Height and maxWidth/Height into account for proper measurement
PickerList, TabBar: fixed issue where Event.CHANGE would be incorrectly dispatched on disposal because dataProvider is set to null
Tests: checks that GroupedList, List, PickerList, and TabBar don't dispatch an extra Event.CHANGE on dispose
Examples: moved setting of Header leftItems and rightItems into custom factory
Examples: moved creation of left and right item components for Headers into custom header factory as a best practice
Cover, Reveal: always uses a clipRect to avoid screens with no background showing things that they shouldn't
TransitionsExplorer: added backgrounds to the test patterns to fill in empty space with a color because the transparency was distracting
Transitions: no longer tries to stop existing transition because mixing different types of transitions wouldn't work anyway. the screen navigator enforces the rule that only one transition may be active at a time anyway
ScreenNavigator, StackScreenNavigator: added an experimental workaround for the issue where the first few frames of a transition can be skipped. the full animation is now visible even on slow mobile devices.