:root {
    --xsf-miaw-loading-background-image: url(https://c1.sfdcstatic.com/content/dam/web/en_us/www/images/live-agent/astro-waiting-snap-ins-wave.gif);
    --xsf-miaw-agent-image: url(https://a.sfdcstatic.com/shared/chat/agentforce-astro.png);
    --xsf-miaw-bottom: 40px;
    --xsf-miaw-bottom-mobile: 40px;
    --xsf-miaw-invite-bottom: 20px;
    --xsf-miaw-frame-bottom: 0;
    --xsf-miaw-chat-text: "Ask Agentforce";
    --hgf-g-blue-vibrant-50: rgba(1, 118, 211, 1);
}

body
button.slds-button.minimizedButton{
    height: 60px;
    width: 60px;
    box-sizing: border-box;
    background-image: var(--xsf-miaw-agent-image);
    background-size: contain;
}

body
button.slds-button.minimizedButton svg{
    display: none
}