BetterDiscordApp-v2/client/src/styles/partials/generic/drawers.scss

.bd-drawer {
    .bd-form-header {
        cursor: pointer;
    }
    .bd-drawer-open-button {
        svg {
            transition: transform 0.5s ease;
            transform: none;
        }
    }

    .bd-drawer-contents {
        display: none;
    }

    &:not(.bd-drawer-open) {
        padding-bottom: 5px;
        border-bottom: 1px solid rgba(114, 118, 126, 0.3);
    }

    &.bd-drawer-open {
        .bd-drawer-open-button {
            svg {
                transform: scaleY(-1);
            }
        }

        .bd-drawer-contents {
            display: block;
        }
    }
}