Have you considered the OS9 Finder pattern? Well now you can experience it for yourself with this handy userstyle!
header + * {
background-image: url('https://staging.cohostcdn.org/attachment/e0c7850a-7420-42a0-8e19-c8e57484e940/OS9_Default.png');
background-attachment: fixed;
background-repeat: repeat;
}
After a few hours, I can confirm this is Scientifically Better than Bliss because it works well both in dark and light mode. Sorry, I don't make the rules.
