"active" styles don't propagate on ToolbarButton components

[alonzuman]

When passing styles prop (active, root) to the ToolbarButton component (whether its Block, Mark and all the rest) the "active" styles don't work.

Steps

1. Add a <ToolbarButton /> component to the toolbar
2. Add styles={{ active: { color: 'red' } }} prop
3. ... not showing up

Sandbox Link to sandbox

Expectation Was expecting the icon color to be red if the mark / block type are active

Environment

• slate:
• slate-react:
• browser: chrome