Fix rendering of net colors on items

include/layers_id_colors_and_visibility.h

@@ -943,6 +943,27 @@ inline bool IsDCodeLayer( int aLayer )
 }
 
 
+/**
+ * Checks if the given layer is "net copper", meaning it is eligible for net coloring
+ * @param aLayer is the layer to test
+ * @return true if the layer is one that participates in net coloring
+ */
+inline bool IsNetCopperLayer( LAYER_NUM aLayer )
+{
+    static std::set<LAYER_NUM> netCopperLayers =
+            {
+                LAYER_PAD_FR,
+                LAYER_PAD_BK,
+                LAYER_PADS_TH,
+                LAYER_VIA_THROUGH,
+                LAYER_VIA_BBLIND,
+                LAYER_VIA_MICROVIA
+            };
+
+    return IsCopperLayer( aLayer ) || netCopperLayers.count( aLayer );
+}
+
+
 PCB_LAYER_ID ToLAYER_ID( int aLayer );
 
 #endif // LAYERS_ID_AND_VISIBILITY_H_

pcbnew/pcb_painter.cpp

@@ -267,14 +267,25 @@ COLOR4D PCB_RENDER_SETTINGS::GetColor( const VIEW_ITEM* aItem, int aLayer ) cons
         netCode = conItem->GetNetCode();
 
     // Apply net color overrides
-    if( conItem && m_netColorMode == NET_COLOR_MODE::ALL )
+    if( conItem && m_netColorMode == NET_COLOR_MODE::ALL && IsNetCopperLayer( aLayer ) )
     {
-        if( m_netColors.count( conItem->GetNetCode() ) )
+        if( m_netColors.count( netCode ) )
-            color = m_netColors.at( conItem->GetNetCode() );
+            color = m_netColors.at( netCode );
         else if( m_netclassColors.count( conItem->GetNetClassName() ) )
             color = m_netclassColors.at( conItem->GetNetClassName() );
-    }
 
+        if( item->IsSelected() )
+            color.Brighten( m_selectFactor );
+        else if( m_highlightEnabled && m_highlightNetcodes.count( netCode ) )
+            color.Brighten( m_highlightFactor );
+        else if( m_highlightEnabled )
+            color.Darken( 1.0 - m_highlightFactor );
+        else if( m_contrastModeDisplay == HIGH_CONTRAST_MODE::DIMMED
+                 && m_activeLayers.count( aLayer ) == 0 )
+            color.Mix( m_layerColors[LAYER_PCB_BACKGROUND], m_hiContrastFactor );
+    }
+    else
+    {
         // Single net highlight mode
         if( m_highlightEnabled )
             color = m_highlightNetcodes.count( netCode ) ? m_layerColorsHi[aLayer]
@@ -283,6 +294,7 @@ COLOR4D PCB_RENDER_SETTINGS::GetColor( const VIEW_ITEM* aItem, int aLayer ) cons
         // Return grayish color for non-highlighted layers in the dimmed high contrast mode
         if( m_contrastModeDisplay == HIGH_CONTRAST_MODE::DIMMED && m_activeLayers.count( aLayer ) == 0 )
             color = m_hiContrastColor[aLayer];
+    }
 
     // For vias, some layers depend on other layers in high contrast mode
     if( m_hiContrastEnabled && item->Type() == PCB_VIA_T &&

pcbnew/pcbnew_config.cpp

@@ -121,6 +121,9 @@ bool PCB_EDIT_FRAME::LoadProjectSettings()
 
     for( const auto& pair : netSettings.m_PcbNetColors )
     {
+        if( pair.second == COLOR4D::UNSPECIFIED )
+            continue;
+
         if( NETINFO_ITEM* net = nets.GetNetItem( pair.first ) )
             netColors[net->GetNet()] = pair.second;
     }
@@ -216,6 +219,9 @@ void PCB_EDIT_FRAME::SaveProjectSettings()
 
     for( const auto& pair : rs->GetNetColorMap() )
     {
+        if( pair.second == COLOR4D::UNSPECIFIED )
+            continue;
+
         if( NETINFO_ITEM* net = nets.GetNetItem( pair.first ) )
             netSettings.m_PcbNetColors[net->GetNetname()] = pair.second;
     }
@@ -225,7 +231,8 @@ void PCB_EDIT_FRAME::SaveProjectSettings()
     // NOTE: this assumes netclasses will have already been updated, which I think is the case
     for( const auto& pair : netSettings.m_NetClasses )
     {
-        if( netclassColors.count( pair.first ) )
+        if( netclassColors.count( pair.first )
+                && netclassColors.at( pair.first ) != COLOR4D::UNSPECIFIED )
             pair.second->SetPcbColor( netclassColors.at( pair.first ) );
     }
 

pcbnew/widgets/appearance_controls.cpp

@@ -1201,6 +1201,8 @@ void APPEARANCE_CONTROLS::rebuildNets()
                             if( s->GetSwatchColor() == COLOR4D::UNSPECIFIED )
                                 s->Hide();
 
+                            m_frame->GetCanvas()->GetView()->UpdateAllLayersColor();
+
                             m_frame->GetCanvas()->RedrawRatsnest();
                             m_frame->GetCanvas()->Refresh();
                         } );
@@ -1658,6 +1660,9 @@ void APPEARANCE_CONTROLS::onNetContextMenu( wxCommandEvent& aEvent )
                 netColors[m_contextMenuNetCode] = color;
             else
                 netColors.erase( m_contextMenuNetCode );
+
+            m_frame->GetCanvas()->GetView()->UpdateAllLayersColor();
+            m_frame->GetCanvas()->Refresh();
         }
 
         break;
@@ -1761,6 +1766,7 @@ void APPEARANCE_CONTROLS::onNetclassColorChanged( wxCommandEvent& aEvent )
     if( swatch->GetSwatchColor() == COLOR4D::UNSPECIFIED )
         swatch->Hide();
 
+    m_frame->GetCanvas()->GetView()->UpdateAllLayersColor();
     m_frame->GetCanvas()->RedrawRatsnest();
     m_frame->GetCanvas()->Refresh();
 }
@@ -1788,6 +1794,7 @@ void APPEARANCE_CONTROLS::onNetColorModeChanged( wxCommandEvent& aEvent )
         options.m_NetColorMode = NET_COLOR_MODE::OFF;
 
     m_frame->SetDisplayOptions( options );
+    m_frame->GetCanvas()->GetView()->UpdateAllLayersColor();
 }
 
 
@@ -1823,6 +1830,8 @@ void APPEARANCE_CONTROLS::onNetclassContextMenu( wxCommandEvent& aEvent )
                     netclassColors[m_contextMenuNetclass] = color;
                 else
                     netclassColors.erase( m_contextMenuNetclass );
+
+                view->UpdateAllLayersColor();
             }
 
             break;