I started to play around with other design elements that I thought of adding to my particle system. I used p5.js editor to play around with different concepts to see if its blending well with the canvas. One of the ideas is to add multi-colored gradient along the edges of the canvas dimensions. It is as shown below -

I thought about making this the same color as the particles but after giving it some thought, I decided against adding these features as the primary focus should be on the particles without any distractions. Hence, I will be sticking with just the particle system.