Why not round to 0.17? I'm not convinced of the necessity of this change.

I just discussed this offline with mcasas@ and we agreed we need fbeaufort@'s input on the developer impact of this change. My argument is that by clamping this value to 2 decimal places we are introducing false precision that will make it harder for developers to display human-readable values to the user. The reason for this is that when a step of 0.1666666616337204 is multiplied by a slider position, say, 6, we get 0.9999999698023224. Script can choose to round this to 2 decimal places and show the value the user expects, 1.00. If we use a step of 0.17 then that same logic will display 1.02.

Marking as Won't Fix after the convincing argument of reillyg@.