Remove checkbox from prop in pie menu I am working on a pie menu for texture painting but i've encountered something I do not understand.

The code and image I have presented below shows a pie menu with a prop that enables mirror brush on X axis, what I do not understand is that the UI does not look the same as in the panel. 

How can I remove the checkbox that is presented in the pie menu to the right



import bpy
from bpy.types import Menu

default_keybind = 'W'

# spawn an edit mode selection pie (run while object is in edit mode to get a valid output)

class VIEW3D_PIE_template(Menu):
    # label is displayed at the center of the pie menu.
    bl_label = "Texture paint"
    bl_idname = "paint.image_paint"

    def draw(self, context):
        layout = self.layout

        toolsettings = context.tool_settings
        #settings = self.paint_settings(context)
        brush = context.tool_settings.image_paint.brush
        ipaint = toolsettings.image_paint

        col = layout.column(align=True)
        row = col.row(align=True)
        #pie = layout.menu_pie()
        row.prop(ipaint, "use_symmetry_x", text="X", toggle=True)


addon_keymaps = []
def register():
    bpy.utils.register_class(VIEW3D_PIE_template)
    wm = bpy.context.window_manager

    km = wm.keyconfigs.addon.keymaps.new(name='Image Paint', space_type='EMPTY')
    kmi = km.keymap_items.new("wm.call_menu_pie", default_keybind, 'PRESS', ctrl=False, shift=False)
    kmi.properties.name = "paint.image_paint"

    addon_keymaps.append(km)

def unregister():
    bpy.utils.unregister_class(VIEW3D_PIE_template)

    wm = bpy.context.window_manager
    for km in addon_keymaps:
        wm.keyconfigs.addon.keymaps.remove(km)
    # clear the list
    addon_keymaps.clear()

if __name__ == "__main__":
    register()

    #bpy.ops.wm.call_menu_pie(name="paint.image_paint")
Answer is pretty simple - you can’t.

Pies remain menus, not toolboxes, so they use the same UI conventions as menus (where only widget for booleans toggles are those small checkboxes).