Use the quick browse list in the community created wiki in the smart app section. Choose the list for “lighting.” Scroll through that until you find a smart app called “garden hue.” even though the author named it “hue” it’s intended for Osram devices.
FYI, I was able to modify the Garden Hue app to run every minute (previous was every 5 minutes). SmartThings only allows you to schedule once per minute now, so that is the quickest you can change colors.