GTK3: Add some comments

roundabout,
created on Tuesday, 2 August 2016, 12:00:20 (1470139220), received on Sunday, 11 May 2025, 13:21:58 (1746969718)
Author identity: nana-4 <hnmaigo@gmail.com>

                                
                                
                                
                            
                                
                                    
                                        
                                            17  
                                              @return scale-color($c, $alpha: percentage(-1 + $a));
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            18  
                                            }
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            19  
                                            
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        20 +
                                        // Reference URL:
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        21 +
                                        // https://material.google.com/style/color.html#color-color-palette
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        22 +
                                        // https://material.google.com/style/icons.html#icons-product-icons
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        23 +
                                        
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            24  
                                            // Foreground colors
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            25  
                                            $fg_color: if($variant == 'light', scale-alpha(#000000, 0.8), #FFFFFF);
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            26  
                                            $secondary_fg_color: scale-alpha($fg_color, $enabled_opacity);
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                            
                                

                                
                                
                                
                            
                                
                                    
                                        
                                            2754  
                                              row {
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            2755  
                                                // Needs overriding of the GtkListBoxRow padding
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            2756  
                                                min-height: 32px;
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        2757 -
                                            margin: -1px 0;
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        2757 +
                                            margin: -1px 0; // Remove unknown margins
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            2758  
                                                padding: 0;
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            2759  
                                            
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            2760  
                                                // Using margins/padding directly in the SidebarRow
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                            
                                

                                
                                
                                
                            
                                
                                    
                                        
                                            5  
                                            
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            6  
                                            // shadows
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            7  
                                            
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        8 +
                                        // Reference URL:
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        9 +
                                        // https://material-design.storage.googleapis.com/images/layout-principles-dimensionality-shadows-08_large_mdpi.png
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        10 +
                                        
                                        
                                        
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            11  
                                            // FIXME: 1.5px doesn't work in box-shadow
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            12  
                                            // $z-depth-1: 0 1px 1.5px rgba(0, 0, 0, 0.12), 0 1px 1px rgba(0, 0, 0, 0.24);
                                        
                                        
                                            
                                            
                                            
                                            
                                        
                                    
                                
                                
                                
                            
                                
                                    
                                        
                                            13  
                                            $z-depth-1: 0 1px 1px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);