Só no Designer ele já adicionou 3 ou 4 controles a mais do que a versão 2.17.
Nota para o uso de CSS no GTK3 bom. Visual vai ficar sem limites!
* hwg_CSSLoad() added to use under GTK
2018-12-19 15:50 UTC+0300 Alexander Kresin <alex@belacy.ru>
* source/gtk/hfrmtmpl.prg
* source/winapi/hfrmtmpl.prg
* utils/designer/resource/widgets.xml
* Top Panel support added to the Designer.
2018-12-19 15:22 UTC+0300 Alexander Kresin <alex@belacy.ru>
* source/gtk/control.c
* source/gtk/drawtext.c
* hwg_SetFgColor(), hwg_SetBgColor(), hwg_SetCtrlFont() are reworked to use under GTK3.
* hwg_CSSLoad() added to use under GTK3
* source/gtk/hfrmtmpl.prg
* source/winapi/hfrmtmpl.prg
* utils/designer/resource/widgets.xml
* Splitter support added to the Designer.
2018-12-18 21:05 UTC+0300 Alexander Kresin <alex@belacy.ru>
* source/gtk/control.c
* hwg_setwidgetname() added
* source/gtk/hcontrol.prg
* source/winapi/hcontrol.prg
hwg_SetCtrlName() updated.
2018-12-18 15:40 UTC+0300 Alexander Kresin <alex@belacy.ru>
* source/gtk/control.c
* source/common/editor/hcedit_l.c
* Corrections to compile under GTK3
2018-12-17 15:20 UTC+0300 Alexander Kresin <alex@belacy.ru>
* source/gtk/control.c
* source/gtk/hprinter.prg
* Corrections to compile under GTK3
Saudações,
Itamar M. Lins Jr.