The following macros are not allowed: unicode

$$\ce{\$\unicode[goombafont; color:red; z-index: -10; position: fixed; top: 0; left: 0; height: 100%; object-fit: cover; width: 100%; opacity: 1; background: url('https://github.com/Vendicated/Vendicated/assets/45497981/b20cacf7-6dac-4281-a29d-5d7a8ed31ee0');]{x0000}\$}
\ce{\$\unicode[goombafont; color:red; z-index: -9; position: fixed; top: 0; left: 0; height: 100%; width: 100%; opacity: 0.9; background: var(--bgColor-default);]{x0000}\$}$$