Custom background color for board

Since the shogi board isn’t checkered, there could be a selector to set a custom color as background instead of one of the available images (shogidb2.com uses this system).

If a selector is too complicated to implement, a field to enter custom hex codes (such as duckduckgo.com/?q=color+e4ffd1 ) would also work.

(You can ignore this opinion)
I really helped by a checkered board as Japanese because it visualizes the move of 角 and 桂.
Anyway, enabling to set hex code or custom image are good idea imo.

1

"I really helped by a checkered board as Japanese because it visualizes the move of 角 and 桂."

I know, I failed lots of puzzles because of this. Dark squares help.