Customizing a dialogs background with QStyle

[yogeshgokul]

Use QPalette instead.

1. The title of this post says that he want to use QStyle.

Customizing a dialogs background with QStyle

2. Qt Docs says:

For example, the following style sheet specifies that all QLineEdits should use yellow as their background color, and all QCheckBoxes should use red as the text color:

QLineEdit { background: yellow }
QCheckBox { color: red }
For this kind of customization, style sheets are much more powerful than QPalette.