- WTabbedPaneUI.java - Brand new basic `JTabbedPane` UI implementation based on components instead of workarounds
- WebTabbedPaneUI.java - Streamlined and simplified, all important elements are now defined in `WTabbedPaneUI`
- TabbedPaneLayout.java - New layout that aligns UI elements within `JTabbedPane` itself according to it's settings
- TabbedPaneInputListener.java - Base interface for custom `UIInputListener`s for `JTabbedPane`
- WTabbedPaneInputListener.java - Default `TabbedPaneInputListener` implementation
- TabArea.java - New component representing whole tab area in `JTabbedPane`
- TabAreaLayout.java - New layout that aligns UI elements in `TabArea` according to `JTabbedPane` settings
- TabViewport.java - New component representing tabs viewport in `JTabbedPane`
- TabContainer.java - New component representing tabs container in `JTabbedPane`
- TabContainerLayout.java - New layout that aligns UI elements in `TabContainer` according to `JTabbedPane` settings
- Tab.java - New component representing a single tab in `JTabbedPane`
- TabMenuButton.java - New component representing menu button for `JTabbedPane.SCROLL_TAB_LAYOUT`
- TabMenuItem.java - New component representing menu item for a single tab in `JTabbedPane`
- TabbedPanePainter.java - Added `tabContentPainter` for customizing content area background
- WebTabbedPane.java - Removed unnecessary forceful tab title translation
- WebLookAndFeel.java - Added new `Alt Left`/`Alt Right` key bindings for navigating to previous/next tabs
- tabbedpane.xml - Completely revamped to provide styles for all new UI elements in `JTabbedPane`
- language.xml - Added translation for the default fallback tab name in tabs menu
- WebTabbedPaneStyle.java, WebBasicTabbedPaneUI.java - Removed as deprecated and redundant
- NeoTabbedPaneUI.java - Removed as redundant, was only used as a UI test example before

DocumentPane
- TabTitleComponent.java - New custom `WebPanel`-based component that represents default `WebDocumentPane` tab title
- DefaultTabTitleComponentProvider.java, TabTitleComponent.java - Adjusted to provide better customization through styles
- DocumentData.java - Replaced list of `DocumentDataListener`s with a proper `EventListenerList` usage
- DocumentData.java - Made foreground and background `@Nullable` and `null` by default instead of fixed values

Popup [ #538 ]
- WebPopup.java - Fixed possible incorrect popup state, it will now always dispose properly upon window being closed
- WebPopup.java - Added `opaque` property change fix for some JDK versions

Label [ #542 ]
- WLabelInputListener.java, WLabelUI.java - Restored functionality of mnemonics on all label components
- LabelInputListener.java - Base interface for custom label `UIInputListener`s

ScrollPane
- ScrollPaneLayout.java, ViewportLayout.java - Renamed for consistency with other custom layout managers
- scrollpane.xml - Fixed `undecorated` style to properly hide corners decoration
- scrollpane.xml - Adjusted according to name changes

Tree
- WebTree.java - Fixed `getAvailableNodes(...)` method not using provided parent
- WebTree.java - Changed `private` modifier on a few older methods to `protected` to make them overridable

InterfaceTree
- InterfaceTreeDataProvider.java - Added fix for AWT components
- AWTComponentPreview.java, WComponentPreview.java - Added better name rendering solution for component classes

Styling
- AbstractDecorationPainter.java - Added new `has-children` and `has-no-children` states pointing at existence or absence of child components
- AbstractDecorationPainter.java - Fixed initial state of `in-focused-parent` and `in-hovered-parent` not being updated on component display
- AbstractSectionDecorationPainter.java - Disabled listeners for container states
- Icons.java, web.xml, dark.xml - Added `menu`, `menu-dimmed` and `menu-hover` general icons

Language
- UILanguageManager.java - Fixed dictionary listeners constant for component client properties
- UILanguageManager.java - Removed unnecessary language data size check

LookAndFeel
- WebLookAndFeel.java - Added key bindings for all fully revamped components with proper action name references
- NativeFonts.java - Added proper native fonts support for JDK7  under Windows OS
- NativeFonts.java - Replaced global debug flag with a local configurable one, it is now also enabled by default
- LafLookup.java - Added support for RTL bindings for `getInputMap` method

Utilities
- SizeCache.java - New utility for `Component` sizes caching convenience for various layout calculations
- ProprietaryUtils.java - Fixed mixing cutout shape support for JDK9 
- DebugUtils.java - Removed mostly unused debug flag
- HtmlUtils.java - Removed all deprecated methods, HTML shouldn't be used for text highlight anymore
- JarStructure.java - Is now a self-sufficient class that can generate JAR structure
- JarUtils.java - Removed as redundant, `JarStructure` is now self-sufficient, a few useful methods moved to `FileUtils`
- ArrayUtils.java, CollectionUtils.java - Added method for round-robin element retrieval
- HoverAdapter.java - Removed as redundant for a single-method interface

DemoApplication
- JTabbedPaneExample.java - New example for `JTabbedPane` component
- WebDocumentPaneExample.java - New example for `WebDocumentPane` component

Other
- LibraryInfoDialog.java - Removed unnecessary custom tab separator component
- info-extension.xml - Updated according to `tabbedpane` style changes
- StyleEditor.java - Slightly improved used styles and UI elements, big revamp is coming in next updates
- styleeditor.xml - Adjusted styles according to UI changes

Project
- intellij-idea-inspections.xml - Updated inspection profile