AEM Classic UI component dialog checkboxes using the selection xtype

aemClassicSelectionCheckboxDialog.xml

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

<!-- Checked checkbox will result in a Boolean property of true-->
<myBooleanCheckbox
    jcr:primaryType="cq:Widget"
    fieldLabel="My Boolean Checkbox"
    name="./myBooleanCheckbox"
    checkboxBoolTypeHint="{Boolean}true"
    type="checkbox"
    xtype="selection"/>

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

<!-- Checkbox defaults to checked Boolean value of true -->
<myCheckbox
    jcr:primaryType="cq:Widget"
    fieldLabel="My Checkbox"
    name="./myCheckbox"
    value="true"
    defaultValue="true"
    checkboxBoolTypeHint="{Boolean}true"
    type="checkbox"
    xtype="selection"/>