(Note: I know that this is issue is mostly related to Symfony bundles and not Symfony code itself, but I think that opening the issue in this repo is the best thing to promote a discussion)

The problem

The output of the Symfony commands is completely different from one command to another. This makes more difficult to use them and shows a lack of attention to details:

Moreover, error messages are not designed for humans:

The solution

If this DX issue is approved by @symfony/mergers and @symfony/deciders I propose the following:

• Create a (very small) work group of people that want to work on this.
• Define a simple (and if possible, visually pleasant) "style guide" for Symfony commands.
• Make (if necessary) some changes on Console component to allow this work.
• Adapt each command output to this new style guide using the new features of the component.