Hello,
Try this approach.
1. CustomFiles:
files/particles.css
files/particles.js
2. Create a json file (particles.json) in the files folder, this is the settings file, like this for example:
https://github.com/VincentGarreau/particles.js/blob/master/demo/particles.json
3. UniLoginForm.Script:
particlesJS.load('body', 'files/particles.json', function() {
console.log('callback - particles.js config loaded');
});
4. MainForm.Script:
document.querySelector('.particles-js-canvas-el').remove();