How to change accordian button and changing placement of entire accordian?

On 1/4/2023 at 10:12 PM, DanielMin said:

website: https://acromegalytrials.squarespace.com/

Hello, how would I make it so that the "plus" accordian button (image) changes to "minus" accordian button when accordian opens? is there also a way to shift the plus/minus buttons down to vertically centre aline with the questions? Lastly, how can I shift the entire FAQ section (entire accordian) to the centre of the webpage? (currently it seems to be on the left side of the webpage)

Add to Design > Custom CSS. Replace Pixabay with a minus image

[aria-expanded="true"] .accordion-item__title:before {
    background-image: url(https://cdn.pixabay.com/photo/2022/11/07/14/21/labor-7576514_1280.jpg) !important;
}