Allow full branding of ADFS login page, not just an image/title
Please provide more details on the kind of customization you would like to achieve with the ADFS sign-in page as well as the version of ADFS you are using.
Samuel Devasahayam (MSFT) commented
Peter Selch Dahl commented
Provide support for links / html in the sign in text
Robin Gorris commented
Allowing customization in the same way you allow customization on the Azure Active Directory B2C preview would be a great improvement. http://blogs.technet.com/b/ad/archive/2015/09/09/azure-ad-b2c-and-b2b-are-now-in-public-preview.aspx
I want to provide html and css.
Omer Cansizoglu commented
Some customization ideas that will be needed:
1- Background color
2- Message section below the login section to alert/announce something such as maintenance to your own system.