show me 5 or upper method to change a qt gui push button color to red when it is pressed in gnuradio 3.8 grc

Here are 5 methods to change a Qt GUI push button color to red when it is pressed in GNU Radio 3.8 GRC:

1. Using Qt Designer:
a. Open the GRC file in Qt Designer.
b. Select the push button widget.
c. In the properties panel, find the "styleSheet" property.
d. Set the property to "QPushButton:pressed { background-color: red; }".

2. Using Python code:
a. Open the GRC file in GRC.
b. Add a "QT GUI Push Button" block to the flowgraph.
c. In the "Properties" tab, set the "Style Sheet" property to "QPushButton:pressed { background-color: red; }".

3. Using Qt Style Sheets:
a. Create a new text file named "button.qss".
b. Add the following code to the file:
QPushButton:pressed {
background-color: red;
}
c. Save the file and load it in the GRC file using the "QSS File" property of the "QT GUI Push Button" block.

4. Using a custom Qt widget:
a. Create a new Python file named "CustomButton.py".
b. Import the necessary Qt modules and classes.
c. Define a custom button class that inherits from QPushButton.
d. Override the "mousePressEvent" method to change the button color to red when pressed.
e. Save the file and use it in the GRC file.

5. Using a custom GNU Radio block:
a. Create a new Python file named "CustomButtonBlock.py".
b. Import the necessary GNU Radio and Qt modules and classes.
c. Define a custom block class that inherits from the "QT GUI Push Button" block.
d. Override the "buttonPressed" method to change the button color to red.
e. Save the file and use it in the GRC file.