Oversized tray icon on Ubuntu Mate 20.04

[gumondo]

Bug Report

Describe the bug

Tray icon is not resized to the tray panel height when plug-in is launched and it is displayed oversized (zoomed in):

To Reproduce

Expected behavior

Whole icon should be watched according to the tray panel height, as can be seen on Linux Mint 20.1:

Environment (please complete the following information):

• OS [e.g. Windows]: Ubuntu Mate
• OS version: 20.04
• Browser [e.g. chrome, safari]:
• Browser Version:
• Agent Version [e.g. 1.0.0]: 1.2.1
• CPU architecture [e.g. amd64]: amd64

Additional context

This icon size issue occurs for any layout used on Ubuntu Mate 20.04 (Traditional, Redmon, etc.)

[gumondo]

Finally I found out that this is not an issue related to Arduino Create Plugin. Some other systray icons in Ubuntu Mate 20.04 (for instance, hplip or sound-switcher-indicator) have also a not expected behaviour. For any of them behaviour is as expected is they are launch using prefix dbus-launch. Thus, I modified file ~/.config/autostart/arduino-create-agent.desktop changing Exec command as follows:
Exec=dbus-launch /path/to/my/home/folder/ArduinoCreateAgent/Arduino_Create_Agent
and now Arduino Create Plugin icon has a proper size: