Leni,
I just changed violet to purple for a google image search, and this is what turned up. I don't know the work off-hand, and I don't know if this is what they referred to in the article. But it has his great balance of lively shapes and color that usually conveys deep contentment if not outright happiness.
What I also appreciate about his work is his appreciation of daily details, which are enhanced in his paintings. We thus see his regard for things that we may overlook in our headlong twenty-first century rush to get things done.
