Themes can't be bulk edited.

[NekoJonez]

On the plugin screen, you have a nice list of every plugin with a handy checkbox to put them all on auto-update or delete them in bulk.
This isn't possible in on the themes page while both of these things would be kind of handy. Especially for dev sites.

[birgire]

Yes agree, a new theme list table is what's missing to be able to delete/autoupdate themes in bulk.

I imagine similar buttons, just like on the Media admin page:

where one can switch between the current theme view and the theme list table.

[SergeyBiryukov]

Related: #55879

[birgire]

Themes Grid view with toggle buttons

[birgire]

Themes List view with toggle buttons

[birgire]

The two screenshots are suggestions how to toggle between list/grid view for themes.

The list view could be more similar to WP_MS_Themes_List_Table that extends WP_List_Table than WP_Themes_List_Table.

The list view table would contain the ways to bulk edit the themes in a typical WordPress admin table way.

[NekoJonez]

That concept looks amazing. I think it would be awesome if that UI also has places where plugins can hook in like: ​https://wordpress.org/plugins/force-update-translations/

Since now, the plugin adds an additional button in the menu for only updating the theme strings.

[birgire]

Thanks @NekoJonez

If the list table approach is the way to go here, then the action links would most probably be filterable, via hook similar to theme_action_links see. e.g ​https://developer.wordpress.org/reference/hooks/theme_action_links/

[birgire]

Related ticket #51832 for bulk delete of themes