JFormDesigner/FlatLaf 3.3

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Highlights

macOS: native rounded borders for popups

Popups on macOS now use native macOS rounded borders (including native drop shadow):

ScrollPane: Support rounded border

ScrollPane now support using rounded border. See PR #713 for information how to enable this feature.

TabbedPane: Support vertical tabs

TabbedPane now supports rotated/vertical tabs:

Change Log

New features and improvements

• macOS (10.14+): Popups (JPopupMenu, JComboBox, JToolTip, etc.) now use
  native macOS rounded borders. (PR #772; issue #715)
• Native libraries: Added libflatlaf-macos-arm64.dylib and libflatlaf-macos-x86_64.dylib.
  See also https://www.formdev.com/flatlaf/native-libraries/.
• ScrollPane: Support rounded border. (PR #713)
• SplitPane: Support divider hover and pressed background colors. (PR #788)
• TabbedPane: Support vertical tabs. (PR #758, issue #633)
• TabbedPane: Paint rounded tab area background for rounded cards. (issue #717)
• ToolBar: Added styling properties separatorWidth and separatorColor.

Fixed bugs

• Button and ToggleButton: Selected buttons did not use explicitly set
  foreground color. (issue 756)
• FileChooser: Catch NPE in Java 21 when getting icon for .exe files that use
  default Windows exe icon. (see JDK-8320692)
• OptionPane: Fixed styling custom panel background in JOptionPane. (issue #761)
• ScrollPane: Styling ScrollPane border properties did not work if view
  component is a Table.
• Table:
  • Switching theme looses table grid and intercell spacing. (issues #733 and #750)
  • Fixed background of boolean columns when using alternating row colors. (issue #780)
  • Fixed border arc of components in complex table cell editors. (issue #786)
• TableHeader:
  • No longer temporary replace header cell renderer while painting. This avoids
    a StackOverflowError in case that custom renderer does this too. (see
    NetBeans issue #6835) This
    also improves compatibility with custom table header implementations.
  • Header cell renderer background/foreground colors were not restored after
    hover if renderer uses null for background/foreground. (PR #790)
• TabbedPane:
  • Avoid unnecessary repainting whole tabbed pane content area when layouting
    leading/trailing components.
  • Avoid unnecessary repainting of selected tab on temporary changes.
  • Fixed "endless" layouting and repainting when using nested tabbed panes (top
    and bottom tab placement) and RSyntaxTextArea (with enabled line-wrapping)
    as tab content. (see jadx issue #2030)
• Fixed broken rendering after resizing window to minimum size and then
  increasing size again. (issue #767)

Incompatibilities

• Removed support for JetBrains custom decorations, which required
  JetBrains Runtime (JBR) 8 or 11. It did not work for JBR 17. System property
  flatlaf.useJetBrainsCustomDecorations is now ignored. Note: FlatLaf
  window decorations continue to work with JBR.