0.21

• ScrollBar: Show decrease/increase arrow buttons if client property
  "JScrollBar.showButtons" is set to true on JScrollPane or JScrollBar.
  (issue #25)
• FlatLaf.isNativeLookAndFeel() now returns false.
• Button: Optionally support gradient borders, gradient backgrounds and shadows
  for improved compatibility with IntelliJ platform themes (e.g. for Vuesion,
  Spacegray and Material Design Dark themes).
• Button: Fixed help button styling in IntelliJ platform themes.
• ScrollPane: Paint disabled border if view component (e.g. JTextPane) is
  disabled.
• Fixed Swing system colors in dark themes.

0.20

Starting with this release, FlatLaf can use 3rd party themes created for IntelliJ Platform, which increases the number of available themes for FlatLaf significantly.

Details: https://www.formdev.com/flatlaf/themes/#intellij_platform_themes

With more that 50 commits, this a large release:

• Support using IntelliJ platform themes (.theme.json files).
• Support JFileChooser. (issue #5)
• Look and feel identifier returned by FlatLaf.getID() now always starts with
  "FlatLaf". Use UIManager.getLookAndFeel().getID().startsWith( "FlatLaf" ) to
  check whether the current look and feel is FlatLaf.
• Fixed selection background of checkbox in table cell.
• Fixed color of links in HTML text.
• Fixed jittery submenu rendering on Mac. (issue #10)
• Fixed "cannot find symbol" error in NetBeans editor, when source/binary format
  is set to JDK 9 (or later) in NetBeans project. (issue #13)
• Button: Make button square if button text is "..." or a single character.
• ComboBox: Fixed issues with NetBeans org.openide.awt.ColorComboBox
  component.
• Hex color values in .properties files now must start with a # character.
• SwingX: Support JXTitledPanel. (issue #22)
• SwingX: Fixed too wide border when using date picker as table cell editor.
  (issue #24)
• JIDE Common Layer: Fixed JidePopup border.

0.18

• TextField and TextArea: Do not apply minimum width if columns property is
  greater than zero.
• TabbedPane: In scroll-tab-layout, the separator line now spans the whole width
  and is no longer interrupted by the scroll buttons.
• TabbedPane: Content pane is no longer opaque. Use antialiasing for painting
  separator and content border.
• ToolTip: Use anti-aliasing to render multi-line tooltips.
• JIDE Common Layer: Support JideTabbedPane.

0.17

• CheckBox: Support painting a third state (set client property
  "JButton.selectedState" to "indeterminate").
• TriStateCheckBox component added (see FlatLaf Extras).
• Made JComboBox, JProgressBar, JSpinner and JXDatePicker non-opaque.
  JPasswordField, JScrollPane and JTextField are non-opaque if they have
  an outside focus border (e.g. IntelliJ and Darcula themes). (issues #20 and
  #17)
• Button: Hover and pressed background colors are now derived from actual button
  background color. (issue #21)
• Table: Fixed missing upper right corner (e.g. in SwingX JXTable with column
  control visible).

0.16

• Made some fixes for right-to-left support in ComboBox, Slider and ToolTip.
  (issue #18)
• Fixed Java 9 module descriptor (broken since 0.14).
• Made JButton, JCheckBox, JRadioButton, JToggleButton and JSlider
  non-opaque. (issue #20)

0.15

• ToolTip: Improved styling of dark tooltips (darker background, no border).
• ToolTip: Fixed colors in tooltips of disabled components. (issue #15)
• ComboBox: Fixed NPE in combobox with custom renderer after switching to
  FlatLaf. (issue #16; regression in 0.14)

0.14

• ComboBox: Use small border if used as table editor.
• ToolBar: Disable focusability of buttons in toolbar.
• OptionPane: Fixed rendering of longer HTML text. (issue #12)
• EditorPane and TextPane: Fixed font and text color when using HTML content.
  (issue #9)
• ComboBox: Fixed StackOverflowError when switching LaF. (issue #14)
• SwingX: Support JXBusyLabel, JXDatePicker, JXHeader, JXHyperlink,
  JXMonthView, JXTaskPaneContainer and JXTaskPane. (issue #8)

0.13

• First release on Maven Central

0.12

• Support Linux. (issue #2)
• Added Flat*Laf.install() methods.
• macOS: Use native screen menu bar if system property
  apple.laf.useScreenMenuBar is true.
• Windows: Update fonts (and scaling) when user changes Windows text size
  (Settings > Ease of Access > Display > Make text bigger).

0.11

• Changed Maven groupId to com.formdev and artifactId to flatlaf.