选中时奇怪的 PySide2 QPushButton 背景颜色

Question

我可以使用样式表来设置 QPushButton 在单击或选中时的背景颜色。然而，检查的颜色并不像我设置的那样；它们包括一些光栅图案。

我使用的代码是：

import sys
from PySide2.QtWidgets import (
    QMainWindow, QApplication, QPushButton,
)
from PySide2.QtCore import (
    QSize,
)


class Window(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setMinimumSize(QSize(180, 110))
        self.setWindowTitle('QPushButton Example')

        button0 = QPushButton('Button 0', self)
        button0.setCheckable(True)
        button0.setStyleSheet(
            """QPushButton { background-color: lightgrey; }"""
            """QPushButton::checked { background-color: blue; }"""
            """QPushButton::pressed { background-color: blue; }"""
        )
        button0.resize(100, 32)
        button0.move(50, 10)

        button1 = QPushButton('Button 1', self)
        button1.setCheckable(True)
        button1.setStyleSheet(
            """QPushButton { background-color: lightgrey; }"""
            """QPushButton::checked { background-color: red; }"""
            """QPushButton::pressed { background-color: red; }"""
        )
        button1.resize(100, 32)
        button1.move(50, 60)


def main():
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    app.exec_()


if __name__ == "__main__":
    main()

只要用鼠标点击按钮，我就得到正确的颜色：

当我按下按钮时（当我“检查”按钮时），我会得到奇怪的颜色：

如何获得为“选中”设置的实际颜色而不是此光栅图案？

Answer 1

这会起作用：

import sys
from PySide2.QtWidgets import (
    QMainWindow, QApplication, QPushButton,
)
from PySide2.QtCore import (
    QSize,
)

class Window(QMainWindow):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setMinimumSize(QSize(180, 110))
        self.setWindowTitle('QPushButton Example')

        button0 = QPushButton('Button 0', self)
        button0.setCheckable(True)
        button0.setStyleSheet(
            """QPushButton { background-color: lightgrey; }"""
            """QPushButton:checked { background-color: blue; border: none;}"""
            """QPushButton:pressed { background-color: lightblue; border: none;}"""
        )

        button0.resize(100, 32)
        button0.move(50, 10)

        button1 = QPushButton('Button 1', self)
        button1.setCheckable(True)
        button1.setStyleSheet(
            """QPushButton { background-color: lightgrey; }"""
            """QPushButton:checked { background-color: red; border: none; }"""
            """QPushButton:pressed { background-color: pink; border: none; }"""
        )
        button1.resize(100, 32)
        button1.move(50, 60)

def main():
    app = QApplication(sys.argv)
    window = Window()
    window.show()
    app.exec_()

if __name__ == "__main__":
    main()