For G Suite.
For Office 365.
How can I change the Logo for the HDE Access Control Login Page?
Yes, it is.
Go to [Domain settings] – then in the [Login page settings], under the [Title logo image] section, select the image file which you would like to use as the logo image.
Display size should be 120px height x 200px width.
*If you select the file with the size larger than the above, it will be downsized automatically.
The set up image should be displayed on the user login page.