AEM Classic UI component dialog checkboxes using the checkbox xtype

aemClassicCheckboxDialog.xml

<!-- Checked checkbox will result in a String property of "on" -->
<myCheckbox
    jcr:primaryType="cq:Widget"
    fieldLabel="My Checkbox"
    name="./myCheckbox"
    xtype="checkbox"/>

<!-- Checked checkbox will result in a Boolean property of true -->
<myBooleanCheckbox
    jcr:primaryType="cq:Widget"
    fieldLabel="My Boolean Checkbox"
    inputValue="true"
    name="./myBooleanCheckbox"
    xtype="checkbox"/>
<myBooleanCheckboxType
    jcr:primaryType="cq:Widget"
    ignoreData="{Boolean}true"
    name="./myBooleanCheckbox@TypeHint"
    value="Boolean"
    xtype="hidden"/>
    
<!-- Checkbox defaults to checked -->
<myBooleanCheckbox
    jcr:primaryType="cq:Widget"
    fieldLabel="My Boolean Checkbox"
    inputValue="true"
    name="./myBooleanCheckbox"
    checked="{Boolean}true"
    xtype="checkbox"/>