Oxygen's code editor runs on CodeMirror 6: Emmet, autocomplete for variables and selectors, linting, and a color picker. Type two dashes to bring up your variables. Same editor across CSS, the PHP element, and Element Studio.
Oxygen's variables cover a whole design system: colors and gradients, numbers, units, fonts, even image URLs. Group them, override one on a single element, or wire them to dynamic data. Walkthrough here:
Every design element you make drops into the Design Library, ready to reuse on that site. You can pull in full Design Sets too, or save your own to share.
Oxygen has an animation engine built into the builder. Entrance effects like fades, slides, and zooms, parallax and color shifts on scroll, and sticky elements, all set from the element controls, no JavaScript. See it in action:
