I have used gnuplot for basic tasks in the past. This time I am trying to generate graphs that'll be sent to the customers and it's important that they look neat and aesthetically pleasant.

Spent last 3 hours on different ways to do that. Checked out some scripts etc to make gnuplot output nicer looking, but it just doesn't seem to compare with the output of some of the js libraries (D3/charts). I wonder if there is a command line way to generate slick graphs that are visually every bit as appealing as using libraries?

TL;DR: Anyone know a way to get stylish looking graphs generated from command line on linux?