Border color plugin update row incorrect color on mobile

[afragen]

When an activated plugin has an update the update row has a background color of #f0f6fc

As of r50025 the background color has changed to #fff. This is in wp-admin/css/list-tables.css:2090

On mobile this results in a white block on the left of the update row.

[hellofromTonya]

Hello @afragen,

Thank you for opening this ticket.

As this change occurred from Ticket #49999 and in changeset [50025], pinging @ryelle for visibility and opinion.

This also removes a redundant rule which is immediately overwritten.

Screenshot of this branch:
<img width="421" alt="Screen Shot 2021-02-05 at 6 37 15 PM" src="​https://user-images.githubusercontent.com/541093/107100063-3df98f80-67e1-11eb-9e72-69e2ad719ae8.png">

Trac ticket: https://core.trac.wordpress.org/ticket/52452

[ryelle]

Added ​a PR to fix the background color - there's a new screenshot in the PR description.

[afragen]

I just tested this patch. It works, thanks @ryelle !

[ryelle]

In 50237:

Administration: Fix background color of plugin update row on small screens.

When the color change was done, the background of plugins with updates had to be manually changed. This section was missed, which caused a visual bug. This fix also removes some redundant CSS for the same element.

Follow-up to [50025].
Props afragen.
Fixes #52452.

Committed in r50237.

[dariak]

As this bug was found in trunk, I could not reproduce it on current 5.6.1 version.
I have tested it on 5.7 beta2 version and could verify that the white block is not shown. Tested on different device emulators + real mobile (Galaxy S6).

[dariak]

tested with 5.7 beta2

[afragen]

@ryelle it seems there's a part 2 to this. Referring to what happens after the update is done.

Seems like an easy fix. Add .plugins .active.updated + .plugin-update-tr:before to the selectors in list-tables.css:2084

[ryelle]

Good catch @afragen - it looks like this was actually an existing problem on 5.6 too. The patch I've attached should fix the issue.

[afragen]

@ryelle your patch is identical to what I did to test. It works!

[ryelle]

In 50385:

Administration: Apply background color to updated message in plugin list table.

Follow-up to [50025].
Props afragen.
Fixes #52452.