How to download and setup unrealStylesheet
Open terminal and run command
                                            git clone https://github.com/leixingyu/unrealStylesheet.git
                                        
                                        git clone is used to create a copy or clone of unrealStylesheet repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with unrealStylesheet https://github.com/leixingyu/unrealStylesheet/archive/master.zip
Or simply clone unrealStylesheet with SSH
                                            [email protected]:leixingyu/unrealStylesheet.git                                    
                                    If you have some problems with unrealStylesheet
You may open issue on unrealStylesheet support forum (system) here: https://github.com/leixingyu/unrealStylesheet/issuesSimilar to unrealStylesheet repositories
Here you may see unrealStylesheet alternatives and analogs
openage tiled liteide qt qutebrowser MuseScore mapbox-gl-native qTox Clementine antimony flameshot gqrx mixxx appleseed pywebview toggldesktop edb-debugger openauto CuteMarkEd LibreCAD qgroundcontrol otter-browser feedback QDarkStyleSheet stellarium hotspot GoldenCheetah SlicerGitSVNArchive qtbase nitroshare-desktop