Bug: Wrong dark mode search box color on Quick API page under Chrome/Chromium

[pushfoo]

Bug Report

System Info

Browsers affected:

Chromium, Version 110.0.5481.177 (Official Build), 64 bit

Browsers unaffected:

FireFox, 102.8.0esr (64-bit)

All Furo doc versions appear to be affected, including:

• Local tip of development + SpriteList doc PR (#1620 )
• https://api.arcade.academy/en/development/api_docs/api/quick_index.html
• https://api.arcade.academy/en/latest/quick_index.html
• https://api.arcade.academy/en/2.6.15/quick_index.html

Actual behavior:

Under Chromium, the text in Quick API search box under dark mode is black rather than the lighter color used in the main search box.

FireFox appears to be unaffected.

Expected behavior:

Text in the Quick API search box uses the same lighter color as the main search box

Steps to reproduce/example code:

1. cd into the doc directory
2. Build doc locally with make html
3. Launch local dev server with python -m http.server -d build/html
4. Open Chromium
5. Ensure dark mode is set
6. Navigate to Quick API Index page
7. Enter any text into the search box