To manage the advanced search colors navigate to Theme Options > Search > Advanced search Colors and locate the panel below on which you have the following options:
1. Advanced Search Background Color
The background will apply to the search form displayed over the header on float position.
Help article for advanced search form display
2. Advanced Search Background color Opacity
Type values between 0 -invisible and 1 – fully visible.
The opacity will apply to the search form displayed over the header on float position.
3. Advanced Search Font Color
The color setup for this option will apply for price slider text and features and amenities if it were enabled for the search form.
Help article for how to setup price slider on the search form
Help article for how to set up features and amenities on the search form
4. Map Advanced Search Button Background Color
The background color setup for this option will apply for the search button.
5. Advanced Search Fields Font Color
The color setup for this option will apply to the search form fields.