Whether you can achieve some good-looking interface effects

[qcjxberin]

Whether you can achieve some good-looking interface effects

[MoAlyousef]

It's possible. FLTK allows customizing the looks. See the images here:
https://github.com/fltk-rs/fltk-rs
https://github.com/fltk-rs/fltk-theme
https://github.com/fltk-rs/fltk-extras

That said, the zig binding don't offer extra themes or widgets. So you would have to customize the looks yourself.