const MessageTraySource = imports.ui.messageTray.Source;

function init () {
    MessageTraySource.prototype['SOURCE_ICON_SIZE'] = 24;
}

const MessageTraySource = imports.ui.messageTray.Source;

function init () {
    MessageTraySource.prototype['SOURCE_ICON_SIZE'] = 24;
}

function enable () {
}

function disable () {
}

Add empty enable and disable functions (required)
Add empty enable and disable functions (required)
