If you’ve developed themes in Liferay Portal 6.1 or Liferay Portal 6.2, as part of your upgrade you’ll want to use them in Liferay DXP 7.0. The upgrade process requires several modifications. To help automate this process you’ll use the Liferay Theme Generator.
The following tutorials show you how to upgrade your Liferay Portal 6.1 and Liferay Portal 6.2 themes to Liferay DXP 7.0.