After comparison with older versions I realized that the gtk+ specific
"chevron style" was previously used *exclusively* in Fl_Scrollbar.
Unfortunately I had picked this style as template for all arrows.
GitHub Issue #1117 requested to add an option for users to change the
arrow style but after my investigation I decided to use the "old style"
(triangles) for all schemes (except "oxy" that has its own drawing
methods).
**IF** it turned out that we need the gtk specific drawing for scrollbars
we could easily reactivate the "chevron style" by adding yet another
arrow type - but I hope this is not necessary.
The Fast Light Tool Kit is a cross-platform C++ GUI toolkit for
UNIX®/Linux® (X11 or Wayland), Microsoft® Windows®, and macOS®.
FLTK provides modern GUI functionality without bloat and
supports 3D graphics via OpenGL® and its built-in GLUT
emulation. It was originally developed by Mr. Bill Spitzak
and is currently maintained by a small group of developers
across the world with a central repository on GitHub.
https://www.fltk.org/
https://github.com/fltk/fltk/
For more information see README.txt:
https://github.com/fltk/fltk/blob/master/README.txt
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