Import the process thumbnails.bpmn . Go to the Project -> Settings -> Service Tasks Note, this step is not needed any more since the recent changes in RHPAM-3249 (included in 7.10.0.GA release). Install all listed ones. There is no need to set any parameters. Save the changes. Close and open process back Open Documentation tab. Scroll down. Actual result Service task Thumbnails are bigger than other nodes Thumbnails. Expected result Service task Thumbnails has the same size as other nodes Thumbnails.