WorkflowGen comes standard with the 'Default' skin, which can be found in the
You can either modify the default CSS file of the portal according to your needs:
But for new WorkflowGen updates you have to preserve your modifications and check the file differences (new styles and images).
Create a new skin (e.g.
\wfgen\App_Themes\myskin) based on the default skin (
\wfgen\App_Themes\Default\*.*) and select this skin on the General tab in the Configuration Panel.