[BITV] Border color too intense now

[ChristophWurst]

Steps to reproduce

1. Run latest server master
2. Run latest Calendar main

Expected behavior

The usual

Actual behaviour

Additional info

This change was done with #35315. @Pytal do you know if the border contrast ratio should apply for the calendar grid as well? If not, we could have lower contrast value for the calendar grid. If the contrast should be the way it is now we can close the ticket.

[Pytal]

Not sure, should different border colors be used for the calendar grid @nimishavijay?

[nimishavijay]

I would say the old more subtle border color works, since in most cases there are events for a day and even if not it is indicated by the date number anyway. cc @jancborchardt on this when he gets back

[Pytal]

• Clarify with accessibility reviewer

[obrb]

I honestly doubt that the Border Contrast Ratio, mentioned in #35315, also refers to calendar grids and line separators, at least the document linked in #35315 does not explicitly mention them. Either way, I think it's ugly ;-) and unnecessary for content separators, especially since there already is a separate High Contrast Theme in Nextcloud, See also my post in the forums: https://help.nextcloud.com/t/rcs-of-25-0-2-24-0-8-23-0-12/150660/2?u=bb77

[jancborchardt]

Transferred to server.

@Pytal @nimishavijay @ChristophWurst the contrast is good for the input fields – but indeed for regular borders like divider lines it is much too present, like in Calendar or like below screenshot from Talk.

It would be best if we would use a separate variable like --color-border-input for this new value, and keep --color-border at the old one. cc @nimishavijay as discussed, and @AndyScherzinger @PVince81 @skjnldsv FYI