I've tried NIUP, finally it works perfect with plotting under Linux on AMD and ARM procs. The bad things are:
* IUP itself seems to be abandoned since v.3.30 of 2020, no more updates. * Plotting is great but hard to customize, per instance no way to make time labels for x-axis, fill some areas with color, make some hover effects, etc. * Still failed to compile IUP for MacOS. Anybody have success? Nobody told about ImGui experience. Does it work in practice with Nim?