If you are using the new and improved version of our TreeListView control (which is part of the Q2.Beta) you can use the same styles for the columns as the ones you use for the grid.
Attached I am sending you a small sample (with Beta release) to illustrate how to set a background of a column.
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? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items.