Message actions menu handle

[ChristophWurst]

Steps to reproduce

1. Open a message
2. Look at the actions menu handle at the top right

Expected behavior

Consistent coloring between actions on the left and the menu handle

Actual behavior

Handle are gray, handle is black.

Mail app version

2.0.0 beta 3

Mailserver or service

No response

Operating system

No response

PHP engine version

No response

Web server

No response

Database

No response

Additional info

No response