materia-theme
                                A Material Design theme for GNOME/GTK based desktop environments
                            
                        How to download and setup materia-theme
Open terminal and run command
                                            git clone https://github.com/nana-4/materia-theme.git
                                        
                                        git clone is used to create a copy or clone of materia-theme 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 materia-theme https://github.com/nana-4/materia-theme/archive/master.zip
Or simply clone materia-theme with SSH
                                            [email protected]:nana-4/materia-theme.git                                    
                                    If you have some problems with materia-theme
You may open issue on materia-theme support forum (system) here: https://github.com/nana-4/materia-theme/issuesSimilar to materia-theme repositories
Here you may see materia-theme alternatives and analogs
material-ui ionic-framework materialize tabler bootswatch material-design-icons flutter material-dialogs framework7 OnsenUI ngx-admin Hero Material animated-tab-bar folding-cell MaterialDrawer BottomBar quasar ice material-components-web pure mdb-ui-kit bootstrap-table coreui-free-bootstrap-admin-template MaterialDesign bootstrap-fileinput material-kit material MahApps.Metro vanilla-back-to-top