One trick that I'm pretty sure I invented is useful in the case where you may be implementing some sort of Material Design palette: you want to use shades of a

One trick that I'm pretty sure I invented is useful in the case where you may be implementing some sort of Material Design palette: you want to use shades of a colour without manually defining them but are losing saturation if you simply use ie. `rgba(255, 255, 255, 0.2)` -- just add `backdrop-filter: saturate(120%)`. This forces the browser renderer to over-saturate the white by mixing in the background colour. Unfortunately Firefox doesn't recognize this CSS property yet but it works fine in WebKit et al.