Change background on one event sub-page

Hello I am looking to change the color and background for one event subpage. I would like to replace the background with an image, and have it only apply to one event in particular.

I have been trying this but it is not functioning currently. If it does it seems it will apply to the events page in general either way.

section[data-section-id="64e28a2f47825a188085e871"] .section-background {
    background-image: url(/s/Friction-Presents-Background.png) !important;
    background-size: cover!important;
    background-repeat: no-repeat!important;
    background-color: transparent!important;
}

https://www.frictionquartet.com/events/friction-presents-lyric-suite

Hi,

Change this for page content only or all (header, page content, footer)?