No need ![]()
Backup file named ToolBar.css
Official\OneStore\fs-base-ui-pages\html_ui\Pages\ToolBar
After that go to
Official\OneStore\fs-base-ui-pages\html_ui\Pages\ToolBar\
In notepad++ or notepad open file named ToolBar.css
Go to line 46 (opacity)
Change 1 to 0
Before

After

Save changes and launch MSFS ![]()
source https://forums.flightsimulator.com/t/official-discussion-upcoming-hotfix-announcement/436058/615