Thank you for considering this request and I am in full agreement. Sailors, kiters , Windsurfers, foilers etc all carefully scrutinize the difference between 10 kn 15 kn and 20 kn.
Could just be a stronger color gradient such as green at 15, red at 20 etc?
95% of wind enthusiasts spend their life between 10 and 20 kn so this range would be wonderful if a strong color gradient was possible. Perhaps a user setting?