Better color contrast for blockquote in admin docs

[Eliana Rosselli]

In the Admin Docs, the color contrast for text in blockquotes is quite low, making the text very hard to read. An example can be seen in the ​template tags docs.

The blockquote color is hard-coded to a shade of gray that isn’t visible in the dark theme. It needs switching to an existing CSS variable so the color contrast is good enough in both themes.

[Eliana Rosselli]

Example from Django Admin Docs of a blockquote with poor color contrast on dark mode

[Sarah Boyce]

Agreed the contrast can be improved, thank you for the ticket

[Jordan]

Pull request available at: ​https://github.com/django/django/pull/19268

[Sarah Boyce]

Thank you Jordan, however, this ticket was recently created and assigned to Eliana. That's because she is working on it (and helping her mentees currently)
Please do not work on tickets that are recently assigned to other folks, if it has been over a month, then perhaps ask if they are working on it still. Over 6 months, then I'd say it's safe to assume it's not being worked on.

[Jordan]

My apologies, this was my first time ever contributing to open source. I will make sure to find tickets that have not been assigned in the future! Replying to Sarah Boyce:

Thank you Jordan, however, this ticket was recently created and assigned to Eliana. That's because she is working on it (and helping her mentees currently)
Please do not work on tickets that are recently assigned to other folks, if it has been over a month, then perhaps ask if they are working on it still. Over 6 months, then I'd say it's safe to assume it's not being worked on.

[Thibaud Colas]

I see this hasn’t had activity in a while so I’ve encouraged @LauHerregodts to take this on at the EuroPython sprints. ​Fixed #36230 -- Improve blockquote contrast #19656.

[GitHub <noreply@…>]

In 896fa85:

Fixed #36230 -- Improved color contrast for blockquote in admin.

Thanks Thibaud Colas for the review.