Visually indicate AI generated inserted text

[jancborchardt]

Is your feature request related to a problem? Please describe.
As a possible follow-up to #8782, when we directly insert AI-generated content, it’s important to make this visible.

We can do this via infobox-like containers, or also nicer.

Describe the solution you'd like
iA Writer has a very nice way of showing AI generated text inline, sort of like a collaborator color highlighting. Scroll a bit down on https://ia.net/writer – could be interesting to explore

iAW-auth-2-macos.mp4

We can use the same color fade we use for Assistant text:

Describe alternatives you've considered
Simple infoboxes we already support. We could introduce a new Assistant-styled infobox that you can’t manually use? (Or you could, to highlight content you pasted from external AI tools?)

Quick mockup (of course the left border should have the proper gradient):

Additional context
They have a blog post about this with more design thoughts on it: https://ia.net/topics/ia-writer-7
It’s from 2023 so a bit dated, and they initially dimmed the text you paste from AI tools.

One relevant info from the post is that they published a Markdown spec for it: https://github.com/iainc/Markdown-Annotations

As discussed in Office/Productivity planning.

[jancborchardt]

Added a way simpler way to do this via an additional infobox styled for Assistant. What do you think @marcoambrosini @juliusknorr ?

[marcoambrosini]

I kinda like the idea but I wouldn't want this funky text to linger in my document indefinitely or until I change it manually. Ideally there would be a way to "consolidate" the colored text into my document without having to rewrite every single sentence.

• Allow to accept changes section by section
• Allow to accept all changes at once