support: toast background color contrasts with the background theme

[somq]

I noticed that toasts use $text-color-step-200 as background color.

With themes, this leads to toasts being black on light backgrounds and white on dark backgrounds.
We are used to the opposite and I feel that it particularly breaks dark mode

Here is an example of using the right toast background color in dark mode (in my opinion)

Is it by design to match some spec?

[ionitron-bot]

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