Display Settings - Change header logo

To change the default language of your Sandbox Studio installation, go to " Settings " > " Display Settings " (1) and click on " Update " in the " Header Logo " section (2): 
 
 
 You can now select your custom header image: 
 
 
 
 Upload your image file . We recommend using transparent background so the logo displays flawlessly. 
 You can choose to have a different logo for dark mode . If this option is left unticked, the same logo as the first one is used.