https://www.joshwcomeau.com/css/make-beautiful-gradients/
https://www.smashingmagazine.com/2022/01/css-radial-conic-gradient/
https://uigradients.com/#MistyMeadow
https://bennettfeely.com/gradients/
https://cssgradient.io/gradient-backgrounds/
Usar gradientes para hacer gráficos de tarta:
https://www.sitepoint.com/create-css-conic-gradients-pie-charts/
Animados (muchos usan JS)
https://bashooka.com/coding/30-css-animated-gradient-examples/