On this site is used opt-out version. So if you decline cookies, with each page refresh all cookies will be deleted before saving (so login and registration will not work)
The cookie banner is displayed only for guests, any registered (logged in) user of any CMS should be clever enough to know that without technical cookies any CMS can't work.
This site doesn't use other than technical cookies, so for now the banner is enough.
What could be done:
- add palette selection and color picker.
Be aware that with Opt-out option the text for Dismiss button should be Dismiss, not Decline.
Learn more link (ON) is going to https://cookiesandyou.com/ if you don't set custom link and your own link.