Palette In Node

[producation]

In the Wire 7.14 Tutorial (Random Color Generation) you could colorize the Texture with pretty unique Palettes (like in Arena with the Gradient Source) but just from a random generated palette. Is there a way to get user generated Palettes into a Wire patch? As far as I understand the Color In node can only choose between pre generated single color presets. On the other hand the gradient palette can just have a start and end value (besides the static hacky workaround like in the 7.12 Tutorial). It would be nice if it is variable like in the Gradient Source of Arena.