You can try to follow these steps:
Go to Online Store → Themes → Actions → Edit code.
Go Assets folder → theme.liquid file.
Add the following code in the bottom of the file above tag
after that:
A user seeks CSS code to change their search bar color to #D9D9D9. They later clarify wanting the outer search header in #D4D1D1 and the search bar/suggestions in #D9D9D9.
Proposed Solutions:
Two support responders provide similar approaches:
</body> tagOne responder includes a visual example showing the desired styling. The conversation includes screenshots and code snippets to illustrate the changes, though the actual CSS code appears corrupted or encoded in the thread text.
Status: The issue remains open with implementation guidance provided but no confirmation of resolution from the original poster.