If you are using a community edition website you have option for choosing from 3 logos: Original, Dark, Light. You have to configure this from web.config:
If your request is not for this logo you can contact our Sales Team
and inquire about logos. They will provide you with the requested resources.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items