Use colors for `package`

Example of webpack with [friendly-errors-webpack-plugin](https://github.com/geowarin/friendly-errors-webpack-plugin)

![screenshot 30](https://user-images.githubusercontent.com/9638156/51083409-c9031b00-172a-11e9-8e6e-b129d52d8c77.png)