✨ Feature: Add `color` option for Boxed and Circle styles

[NorinB]

✨ Feature Description

Highlighting does allow the developer to choose the color of the decoration. I would like to be able to change the colors of Boxed and Circle decorations as well.

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🤔 Why Is This Needed?

Allowing the developer to have more customization options would make the package even more usable in the future.

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