/* Embryonic dark mode If you do want to use and improve it, and encounter a difficulty due to (lack of) widget object names or whatever, please get in touch, I'll fix what needs to be. You can have a look at http://doc.qt.io/qt-5/stylesheet-syntax.html for Qt style sheet information. Select the file from the GUI with: Preferences->GUI configuration->User interface->Style sheet->Choose You will also need to change the HTML style which controls the result list: Preferences->GUI configuration->Result list-> Edit result page html header insert For example: */ /* Light on dark text everywhere*/ * { /* font-size: 14pt;*/ background-color: #373737; color: #ffffff; selection-background-color: #424e72; selection-color: #ffffff; } QToolTip { background-color: yellow; color: black; } QMenuBar::item:selected { background: #424e72; } /* I have used the colour values that were in QTabWidget QTabBar::tab for * QTabWidget QTabBar::tab:selected, and vice-versa. Also, though, I have * brightened the whites.*/ QTabWidget QTabBar::tab { background: #5f5f5f; color: #ffffff; } QTabWidget QTabBar::tab:selected { background: #2f4f4f; color: #ffffff; } /* * Slightly *darker* background for text entry areas, and brighter * (lighter) foreground. */ QComboBox[editable="true"], QTextEdit, QLineEdit, QTextBrowser, QTableView, QWebView, QPlainTextEdit { background-color: #101010; /*Changed*/ color: #ffffff; /*Changed*/ }