Change text color in location badge and icon color in the marker

Add this code to the Custom CSS field on the Style tab of your Store Locator widget’s settings:

global-styles,
[class*='badge__StyledBadge-sc'] {
color: rgb(255, 255, 255);
}
global-styles,
[class*='Icon__IconContainer-sc'] svg {
fill: rgb(255, 255, 255);
}