It is just that there are absolutely no standard platform widgets (at least on Windows) for this UI. https://notes.sciter.com/wp-content/uploads/2017/09/notes-sc...
And even if there are some, integrating them with what your app is needed will lead to some mess like here:
https://notepad-plus-plus.org/assets/images/notepad4ever.gif
Custom components a la Windows 2000, some in Windows XP with default styled Windows 8 stuff - the zoo.
It is just that there are absolutely no standard platform widgets (at least on Windows) for this UI. https://notes.sciter.com/wp-content/uploads/2017/09/notes-sc...
And even if there are some, integrating them with what your app is needed will lead to some mess like here:
https://notepad-plus-plus.org/assets/images/notepad4ever.gif
Custom components a la Windows 2000, some in Windows XP with default styled Windows 8 stuff - the zoo.