[Help] Custom style for Tabs

[carlocorradini]

How to implement custom style for Tabs?
I'm trying to add a Dark style when the current theme is Dark
I've tried to do the following:

#[derive(Debug, Clone, Copy, Eq, PartialEq, Display, Default)]
pub enum MyTheme {
    Light,
    #[default]
    Dark,
}

impl iced_aw::tab_bar::StyleSheet for iced::Theme {
    type Style = MyTheme;

    fn active(&self, style: Self::Style, is_active: bool) -> iced_aw::style::tab_bar::Appearance {
        // ...
    }

    fn hovered(&self, style: Self::Style, is_active: bool) -> iced_aw::style::tab_bar::Appearance {
        // ...
    }
}

This does not work due to one of Rust's principles:
"Only traits defined in the current crate can be implemented for types defined outside of the crate define and implement a trait or new type instead"

If this approach is not feasible, what is the correct one? Thanks 😊🎉

PS: What do you think if we add Dark in TabBarStyles?
PSPS: I think styling is not strictly related to Tabs but also for other widgets too... Add an example on how to override a style? 👀

[genusistimelord]

I think it would be fine to add Dark to the Tab styles. The issue with Themes atm is if you want anything outside of the current theme you have to create an Entire New theme for all of iced to get the smaller parts the way you want them too. We have been working out more ways to customize this to be able to still do it the old way where you can set a Custom theme per Image. Just have not gotten around to it.

[carlocorradini]

I'll try to create a PR with the new Style 🥳
Thanks for your reply 😎