KivyMD ToggleButton disabled incorrect color

[eo93ed]

Description of the Bug

When disabling ToggleButtons, the button turns dark grey if the toggle button has been used but is very light grey if it hasnt been used

Below code is simple 2 toggle buttons and one switch.

Run the code: First click switch, both buttons disabled and color is just faded - no fill. Next, click switch to enable buttons and select one only then click it again to unselect it. Next click the switch to disable buttons. This time one button is dark grey and the other is still faded.
If you do it all again and this time interact with both buttons then disable them, the selected button will be dark grey, the unselcted will be light grey.

I think correct behaviour should be when diabled button should be pale if unseleceted and light grey if selected prior to disabled.

The dark grey is getting in there and I dont think it should be!!

First time reporting a bug so hope it makes sense!!

Code and Logs

from kivy.lang import Builder
from kivymd.app import MDApp
from kivymd.uix.behaviors.toggle_behavior import MDToggleButton
from kivymd.uix.button import MDRoundFlatButton

KV = '''
FloatLayout:

    MyToggleButton:
        text: "Botton 1"
        group: 1
        pos_hint: {'center_x': .5, 'center_y': .2}
        on_press: print("this is button 1")
        disabled: checkbox.active

    MyToggleButton:
        text: "Botton 2"
        group: 1
        pos_hint: {'center_x': .5, 'center_y': .5}
        on_press: print("this is button 2")
        disabled: checkbox.active

    MDSwitch:
        id: checkbox
        pos_hint: {'center_x': .5, 'center_y': .8}
        
'''

class MyToggleButton(MDRoundFlatButton, MDToggleButton):
    pass

class Test(MDApp):
    def build(self):
        return Builder.load_string(KV)

Test().run()

Versions

• OS: Windows
• Python: 3.10.6
• Kivy: 2.1
• KivyMD: 1.1.0.dev0

[HeaTTheatR]

@eo93ed

from kivy.lang import Builder
from kivymd.app import MDApp

KV = '''
MDScreen:

    MDBoxLayout:
        id: btn1
        adaptive_size: True
        spacing: "12dp"
        pos_hint: {'center_x': .5, 'center_y': .5}
        
        MDRaisedButton:
            id: btn2
            md_bg_color: "red"
            text: "MDRaisedButton"

        MDRectangleFlatButton:
            id: btn3
            text: "MDRectangleFlatButton"

        MDFlatButton:
            id: btn4
            text: "MDFlatButton"

        MDFlatButton:
            id: btn5
            text: "MDFlatButton"
            md_bg_color: "green"

    MDRaisedButton:
        text: "Disabled"
        y: "24dp"
        pos_hint: {'center_x': .5}
        on_release:
            btn1.disabled = not btn1.disabled
            btn2.disabled = not btn1.disabled
            btn3.disabled = not btn1.disabled
            btn4.disabled = not btn1.disabled
            btn5.disabled = not btn1.disabled
'''


class Test(MDApp):
    def build(self):
        return Builder.load_string(KV)


Test().run()

This is normal behavior for buttons that have md_bg_color set.