QtitanDataGridModel-view DataGrid component with rich functionality for Qt.C++ and PySideQtitanRibbonReplicates Microsoft RibbonUI interface for Qt.C++ and PySideQtitanNavigationDesignUIReplicates Microsoft Navigation Design interface for Qt.C++ and PySideQtitanChartCharts and Diagrams component for Qt.C++ and PySideQtitanDockingDockable Panels and Tool Bars for Qt.C++ and PySideQtitanFastInfosetXML Compressed format FastInfoset implementation for Qt.C++ and PySideRoadmap Development 2023
FireDataGridPowerful, modern, fast, DB-Aware Grid for Delphi-FiremonkeyFireDockingDelphi IDE/Visual Studio implementation of dock panels for Delphi-Firemonkey
Unfortunately, this can not be done the easy way. But you can override the rendering in a cell editor and do the job manually. I have added your wish into our suggestion base, this feature will be considered when the new version of the grid will be planned.
Grid has a feature to highlight a cells based on standard Qt roles - Qt::DecorationRole, Qt::ForegroundRole, Qt::BackgroundRole. Maybe it will be useful for you.