FLTK 1.4+ for new TC16+ (64 bits)?

[nick65go]

https://www.fltk.org/articles.php?L1954
Article #1954: FLTK 1.3.10 released on Nov. 16, 2024
FLTK 1.3.10 is a maintenance release with minor enhancements and some macOS and CMake related improvements. This is intended to be the last release of the 1.3.x series.

https://www.fltk.org/articles.php?L1959
Article #1959: FLTK 1.4.1 released on Dec. 12, 2024
FLTK 1.4 is a new release series with major enhancements, new widgets. It is based on the final release of FLTK 1.3.4. Later updates have been backported to 1.3.5 - 1.3.10. (but not to 1.3.4 of Tinycore).
FLTK 1.4 adds new widgets (e.g. Fl_Flex, Fl_Grid) for flexible GUI layout, Fl_Scheme_Choice for scheme selection by users, and more. Other widgets (Fl_Tabs, Fl_Tile, Fl_Spinner etc.) have been improved for better user experience.

FLTK 1.4 adds support for HighDPI displays under Linux/Unix ... The initial screen scaling factor is read from the system and application windows can be zoomed (in/out/reset) by the user with ctrl/+/-/0 shortcuts, respectively.

FLTK is now compatible with the Wayland platform on current Linux distributions. The default build of the library on these platforms supports both X11 and Wayland in a "hybrid" library. Programs compiled and linked to this library launch using Wayland if it is available at runtime and fall back to X11 if not. Programs using X11 specific code that are not yet ported to Wayland can be used on pure X11 systems or by disabling the Wayland support on startup so they fall back to using X11 only. This requires 'XWayland' support on Wayland enabled (Linux) systems.