Trouble Changing Themecolor

I have tried to change the color scheme as directed in your help file at https://docs.semicolonweb.com/docs/getting-started/color-schemes/

I have added the following into the css/custom.css file, but it doesn't see to do anything.

:root {
--cnvs-themecolor: #cea333;
--cnvs-themecolor-rgb: 206, 163, 51;
}

I've also tried changing it directly in the style.css file in the root folder with no luck.

Any ideas as to what I am doing wrong?

Not sure what happened, but it is working correctly now. Perhaps it just needed a refresh overnight or something.