Assorted improvements following up #6658

[nicoddemus]

No description provided.

[nicoddemus]

In general I've started to play around with making the terminal writer handle a pygments Token stream, which allows for e.g. LineMatcherFailed exceptions to be colored / tokenized.

Definitely! We should use this for all custom failure exceptions (text diff, list diffs, etc) like has been done in ward.

Interesting idea of supporting pygments token streams directly in our subclass, had not thought about that.

[nicoddemus]

Interesting idea of supporting pygments token streams directly in our subclass, had not thought about that.

We can probably see how popular the color feature is (I suspect huge), so we can then see if there are problems on depending on pygments directly (I think none).

[RonnyPfannschmidt]

that diff was fun, without expanding it looks ike a api change