This theme is very original, and the only other Thai themed games we can think of are Thai Flowers in Barcrest and Thai Paradise in Playtech. They can even add white sand to somewhere in the background, which is why many players will connect with Thailand, a popular beach resort.
Themes in China and Japan are more common in Asian culture, but as Thailand's increasingly popular holiday destinations, we imagine that players are becoming more familiar with their culture and related symbolism.