Theme's custom CSS or design tokens disappeared after saving Appearance
What you are seeing
Your site's custom CSS or design tokens have vanished after the Appearance settings were saved.
#Why it happens
Saving the theme replaces the whole thing rather than merging your changes into it. If whatever saved it sent only some of the theme's settings, anything it left out is cleared. That is how custom CSS and design tokens go missing.
#What to do
If you update the theme through the API, always send the complete theme, not just the fields you are changing. Include your custom CSS and design tokens every time, so nothing gets left behind.
#Related
Password-protected site's sign-in button does nothing
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Everyone was signed out of my protected site at once
A platform update to the sign-in mechanism invalidates all existing sessions.
Other problems
The rest of this family.
Found it? Good.
