Function that generates a stylesheet for styling QCheckBox

style_QCheckBox.py

import sys
from qtpy.QtWidgets import (
    QApplication,
    QMainWindow,
    QCheckBox,
    QFrame,
    QGridLayout,
)


"""
check.svg
```
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><title>check</title><path d="M21,7L9,19L3.5,13.5L4.91,12.09L9,16.17L19.59,5.59L21,7Z" /></svg>
```

svg.qrc
```
<!DOCTYPE RCC>
<RCC version="1.0">
    <qresource prefix="/">
        <file>svg/check.svg</file>
    </qresource>
</RCC>
```
"""

###  start of `svg.qrc` ###
from PySide6 import QtCore

qt_resource_data = b"\
\x00\x00\x00p\
<\
svg xmlns=\x22http:\
//www.w3.org/200\
0/svg\x22 viewBox=\x22\
0 0 24 24\x22><titl\
e>square</title>\
<path d=\x22M3,3V21\
H21V3\x22 /></svg>\
\x00\x00\x00\x9a\
<\
svg xmlns=\x22http:\
//www.w3.org/200\
0/svg\x22 viewBox=\x22\
0 0 24 24\x22><titl\
e>check</title><\
path d=\x22M21,7L9,\
19L3.5,13.5L4.91\
,12.09L9,16.17L1\
9.59,5.59L21,7Z\x22\
 /></svg>\
"

qt_resource_name = b"\
\x00\x03\
\x00\x00z\xc7\
\x00s\
\x00v\x00g\
\x00\x0a\
\x08\x8b\x0b\xa7\
\x00s\
\x00q\x00u\x00a\x00r\x00e\x00.\x00s\x00v\x00g\
\x00\x09\
\x0b\x9e\x89\x07\
\x00c\
\x00h\x00e\x00c\x00k\x00.\x00s\x00v\x00g\
"

qt_resource_struct = b"\
\x00\x00\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x00\x01\
\x00\x00\x00\x00\x00\x00\x00\x00\
\x00\x00\x00\x00\x00\x02\x00\x00\x00\x02\x00\x00\x00\x02\
\x00\x00\x00\x00\x00\x00\x00\x00\
\x00\x00\x00\x0c\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\
\x00\x00\x01\x8eyp]\xe3\
\x00\x00\x00&\x00\x00\x00\x00\x00\x01\x00\x00\x00t\
\x00\x00\x01\x8ey`N\xad\
"


def qInitResources():
    QtCore.qRegisterResourceData(
        0x03, qt_resource_struct, qt_resource_name, qt_resource_data
    )


def qCleanupResources():
    QtCore.qUnregisterResourceData(
        0x03, qt_resource_struct, qt_resource_name, qt_resource_data
    )


qInitResources()


###  end of `svg.qrc` ###


def style_QCheckBox(
    border_width: str = "1px",
    border_radius: str = "4px",
    size: str = "13px",
    padding: str = "1px",
    spacing: str = "2px",
    checked_image=":/svg/check.svg",
    indeterminate_image=":/svg/square.svg",
    border_color: str = "#b0b0b0",
    background_color: str = "#fdfdfd",
    color: str = "#404040",
    hover_border_color: str = "#404040",
    disabled_border_color: str = "#b0b0b0",
    disabled_background_color: str = "#e0e0e0",
    disabled_color: str = "#808080",
):

    qss = f"""
        QCheckBox {{
            spacing: {spacing};
        }}
        QCheckBox::indicator {{
            width: {size};
            height: {size};
            border-width: {border_width};
            border-style: solid;
            border-color: {border_color};
            border-radius: {border_radius};
            background-color: {background_color};
            color: {color};
            padding: {padding};
        }}
        QCheckBox::indicator:checked {{
            image: url('{checked_image}');
        }}
        QCheckBox::indicator:indeterminate {{
            image: url('{indeterminate_image}');
        }}
        QCheckBox::indicator:hover {{
            border-color: {hover_border_color};
        }}
        QCheckBox::indicator:disabled {{
            border-color: {disabled_border_color};
            background-color: {disabled_background_color};
            color: {disabled_color};
        }}
        """
    return qss


class Frame(QFrame):
    def __init__(self, parent=None):
        super().__init__(parent)
        layout = QGridLayout()
        layout.setSizeConstraint(QGridLayout.SizeConstraint.SetFixedSize)
        w = QCheckBox()
        layout.addWidget(w, 0, 0)
        w = QCheckBox()
        w.setChecked(True)
        layout.addWidget(w, 0, 1)
        w = QCheckBox()
        w.setCheckState(QtCore.Qt.CheckState.PartiallyChecked)
        layout.addWidget(w, 0, 2)

        w = QCheckBox()
        w.setDisabled(True)
        layout.addWidget(w, 1, 0)
        w = QCheckBox()
        w.setChecked(True)
        w.setDisabled(True)
        layout.addWidget(w, 1, 1)
        w = QCheckBox()
        w.setCheckState(QtCore.Qt.CheckState.PartiallyChecked)
        w.setDisabled(True)
        layout.addWidget(w, 1, 2)
        self.setLayout(layout)


def main():
    app = QApplication(sys.argv)
    app.setStyleSheet(style_QCheckBox())
    w = QMainWindow()
    w.setMinimumSize(200, 100)
    w.setCentralWidget(Frame(w))
    w.show()
    sys.exit(app.exec())