@custom-sprite: "/assets/icons/custom-sprite/svg/symbols.svg";
@doctype-sprite: "/assets/icons/doctype-sprite/svg/symbols.svg";
@standard-sprite: "/assets/icons/standard-sprite/svg/symbols.svg";
@action-sprite: "/assets/icons/action-sprite/svg/symbols.svg";
@utility-sprite: "/assets/icons/utility-sprite/svg/symbols.svg";