The new products in November 2018 is a Colorful imaged light geometric figure.
It is a design that imaged light.
I hope you will feel the light.
This image is made by a program.
You can customize and personalize the image size, position, background color, name etc. freely.
There is an affiliate link to Zazzle in this post.
光彩 (kōsai) is meaning such as brilliance or luster.