Minor: Clay_Color range is unintuitive

[mikejsavage]

Clay_Color is defined as 4 floats, so you would expect each component to range from 0-1, but the inspector hardcodes colours with components in 0-255 as if it was 4x uint8.

Besides the inspector clay doesn't seem to care what you put in Clay_Color so it's not a big deal, but it would still be nice to clear this up.