macOS Monterey Toggle Cursor Size

toggle.js

// see https://apple.stackexchange.com/a/430338/433504

function fn() {
    const cursorSizeSmall = 1 
    const cursorSizeLarge = 4
    
    const isRunningSystemPreferences = Application('System Preferences').running()
    Application('System Preferences').panes.byId('com.apple.preference.universalaccess').anchors.byName('Seeing_Cursor').reveal()
    const process = Application('System Events').processes.byName('System Preferences')
    while (process.windows.length == 0) {}
    const window = process.windows[0]
    while (window.groups.length == 0) {}
    const group = window.groups[0]
    while (group.tabGroups.length == 0) {}
    const tabGroup = group.tabGroups[0]
    while (tabGroup.sliders.length == 0) {}
    const slider = tabGroup.sliders[0]
    if (slider.value() == cursorSizeSmall) {
        slider.value = cursorSizeLarge
    } else {
        slider.value = cursorSizeSmall
    }
    if (!isRunningSystemPreferences) {
        Application('System Preferences').quit()
    }
}

fn()