Very hard to read events when using high-contrast mode

[Tom-Hubrecht]

Steps to reproduce

1. Activate the high-contrast mode
2. Open a calendar in the Week or Day view

Expected behavior

Events borders should clearly be visible.

Actual behavior

It is almost impossible to know when an event starts/ends in a visual way

Calendar app version

6.5.2

CalDAV-clients used

No response

Browser

153.0.1

Client operating system

NixOS unstable

Server operating system

No response

Web server

None

Database engine version

None

PHP engine version

None

Nextcloud version

No response

Updated from an older installed version or fresh install

None

List of activated apps

Nextcloud configuration

Web server error log

Log file

Browser log

Additional info

No response