Renders a pill with a color.

Example

<.pill color="red">
  Red pill
</.pill>

## Colors

- `gray` **default**
- `red`
- `yellow`
- `green`
- `blue`
- `indigo`
- `purple`
- `pink`

## Attributes

* `color` (`:string`) - Defaults to `"gray"`. Must be one of `"gray"`, `"red"`, `"yellow"`, `"green"`, `"blue"`, `"indigo"`, `"purple"`, or `"pink"`.
* Global attributes are accepted.
## Slots

* `inner_block` (required)