Buttons hover effects not noticeable with certain themes and presets

[knd775]

Current Behavior

On darker themes, buttons with preset-tonal or preset-tonal-surface don't perceptibly change on hover. For darker values, they don't change at all.

Expected Behavior

Noticeable hover effects on buttons

Steps To Reproduce

1. Use a darker theme
2. Create a button with preset-tonal
3. Hover the button

Link to Reproduction / Stackblitz

No response

More Information

No response

[endigo9740]

Note for myself: the hover state expected is the brightness change from the .btn class here:
https://github.com/skeletonlabs/skeleton/blob/next/packages/skeleton/src/plugin/components/buttons.css#L7

This doesn't seem to play well with certain combinations of theme values and presets.