/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/ is in libflamingo-java-doc 5.0-1.
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/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/AbstractFilter.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/ArrowResizableIcon.CommandButtonPopupIcon.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/ArrowResizableIcon.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/ButtonSizingUtils.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/ColorShiftFilter.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/DoubleArrowResizableIcon.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/FlamingoUtilities.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.HasNextKeyTipChain.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.KeyTipChain.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.KeyTipEvent.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.KeyTipLink.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.KeyTipLinkTraversal.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.KeyTipListener.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipManager.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/KeyTipRenderingUtilities.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/RenderingUtils.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/package-frame.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/package-summary.html
/usr/share/doc/libflamingo-java/api/org/pushingpixels/flamingo/internal/utils/package-tree.html