Long Press Duration not in even numbers

SwiftKey > Typing > Keys > Long Press Duration

I want to set this to 200 ms, but it's not possible. I can get 199 or 201. Maybe I'm just being OCD and 201 ms is virtually the same as 200, but I think it will look better.

Maybe a 5 or 10 ms increment would work better.

Using Samsung Galaxy Note 9 on Android 8.1 Oreo
SwiftKey beta 7.2.2.31