Build a dynamic theme generator with Ionic 4 using nothing but CSS variables. https://angularfirebase.com/lessons/css-variables-in-ionic-4/
– CSS Variables https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_variables
– Coolors.co https://coolors.co/
– Ionic 4 Docs https://ionicframework.com/docs/