I looked up reviews of vector graphics programs on linux and this one was clearly the favourite among enthusiasts.
But to the point of this. I'm required to make a working portfolio for my Pharmacy Technician program. I want to incorporate the Rx symbol into the page to spice them up. Apparently adding stuff to the left and top makes your portfolio pop and I want mine to pop more than others. I drew this up in class:

and this is the picture I'm starting with:

I think it'll look nice if I play around with some gradients and have it progress down and then back up. Problem is I have no clue how to make the squiggly part. I have to create that piece so that I can piece it together. I'll figure out the bottom later. I could try a million different things and probably be wrong on each one so I'll ask a knowledgeable community. What would be the best way to achieve that shape so that I'll be able to add colour fill gradients to it?