v3.3.0

New features

• Adds a third parameter to clampChroma() to change the destination RGB gamut (#212, #213)
• Adds the ability to bypass the JND part of the CSS Color Level 4 gamut mapping algorithm by passing null as the delta color difference function (#212, #213)
• Adds the easingSmoothstepInverse() function (re: #207)

Bug fixes

• Updates the sRGB inverse transfer function to match the CSS spec (see w3c/csswg-drafts#9467)