dark mode support

[neuromusic]

from October 2021 pre-launch bug bash

Created by: Justin

Description

theme (along with hub) should support "dark mode" when user's browser is in dark mode

Info

Bug source: unknown

Browser: unknown

PR: none

Attachments

[neuromusic]

as noted in napari/napari.github.io#146, part of this work will need to account for images under light/dark mode

note, GitHub now supports this in markdown files: https://twitter.com/github/status/1463556704436637707

[neuromusic]

is there a way to determine how many visitors to napari.org have their system/browser set for dark mode? can we pull this into plausible?

[psobolewskiPhD]

I'm very for a light and native dark theme, because I autoswitch on my Macs.
With the new theme #134 we should have a ccess to dark mode natively.
It would need to be enabled in napari/docs if I am understanding correctly.
CC: @melissawm Shall we move this issue?

[melissawm]

I actually think this could be kept here, because as much as we need to turn it on and off in napari/docs, the actual styling will go here. I am unsure even how to treat this as I don't really know how a dark theme would look good here. We might need someone with design chops for this.

[psobolewskiPhD]

Sounds good.
I'm honestly shocked the site isn't dark by default given the dark theme of napari being the default!
I'll take a look at what my darkening extension does with the new site.