SGI's Forms programming toolkit led to both XForms: http://xforms-toolkit.org/doc/xforms_1.html#Preface http://xforms-toolkit.org/doc/xforms_1.html#Preface (T

SGI's Forms programming toolkit led to both XForms: http://xforms-toolkit.org/doc/xforms_1.html#Preface http://xforms-toolkit.org/doc/xforms_1.html#Preface (The original basis of the Xfce desktop -- "XF" stood for XForms.) And the FLTK toolkit: https://www.fltk.org/doc-1.1/intro.html https://www.fltk.org/doc-1.1/intro.html FLTK dropped a new version last year after a gap of 13 years, which I wrote about: https://www.theregister.com/2024/11/26/fltk_14_released/ https://www.theregister.com/2024/11/26/fltk_14_released/