Yarn outdated is not colorblind friendly

Great tool, I use every day, but some things are a bit hard for me as I'm colorblind. especially the yarn outdated

This would also be useful for terminals that don't have color at all.

Do you want to request a feature or report a bug? feature

What is the current behavior? When using yarn outdated the values are displayed in green, red, yellow

If the current behavior is a bug, please provide the steps to reproduce.

What is the expected behavior? together with the colors, would be good to have some kind of symbol, as colorblind people (or single color terminal users) would find it difficult to distinguish the types.

Please mention your node.js, yarn and operating system version.