How can

backgroundTint

be translated to compose buttons?

Depends how you’ve used it in the past. At a simple level, Button has a

colors

param that you can modify to whatever you want, including passing colors that are mixed (using the available Colors graphics APIs).

Previous it was used on a color

<item name="styleButtonActionPrimaryCaution">@style/Button.Action.Primary.Caution</item>

<style name="Button.Action.Primary.Caution">
<item name="backgroundTint">@color/selector_color_caution</item>

But in compose a Button only has a

backgroundColor

which has a alpha=1.00 So I only could set a tranparency myself to the background color, but thats probably not the right solution

I think that solution is fine. Especially if you wrap this Button in your own Composable, e.g. AppButton, so then it’s reusable