Basic explanation is in Japanese. English translation follows.
The left is the one, which is introducing Japanese Traditional Pattern Collection with Copyright Free
Design Patterns' CD-ROM.
For example, the bottom purple and green design is Pine Tree. "The pines are green colored through four seasons. Therefore, it has been called " tokiwagi" ( everlasting tree) "tokiwagusa"(everlasting grass) from ancient times. A single pine tree can also mean auspicious matter. Yet, the various kinds of combinations are showcasing the celebratory patterns. " Publisher is X-MEDIA. The original author is Kaoru Yamamoto.