Don't use the schematic grid for page border in pcbnew

Fixes https://gitlab.com/kicad/code/kicad/-/issues/5105

common/page_layout/ws_proxy_view_item.cpp

@@ -41,7 +41,8 @@ WS_PROXY_VIEW_ITEM::WS_PROXY_VIEW_ITEM( int aMils2IUscalefactor, const PAGE_INFO
         m_sheetNumber( 1 ),
         m_sheetCount( 1 ),
         m_project( aProject ),
-        m_colorLayer( LAYER_WORKSHEET )
+        m_colorLayer( LAYER_WORKSHEET ),
+        m_pageBorderColorLayer( LAYER_GRID )
 {
 }
 
@@ -110,7 +111,7 @@ void WS_PROXY_VIEW_ITEM::ViewDraw( int aLayer, VIEW* aView ) const
     ws_settings->SetNormalColor( settings->GetLayerColor( m_colorLayer ) );
     ws_settings->SetSelectedColor( settings->GetLayerColor( LAYER_SELECT_OVERLAY ) );
     ws_settings->SetBrightenedColor( settings->GetLayerColor( LAYER_BRIGHTENED ) );
-    ws_settings->SetPageBorderColor( settings->GetLayerColor( LAYER_SCHEMATIC_GRID ) );
+    ws_settings->SetPageBorderColor( settings->GetLayerColor( m_pageBorderColorLayer ) );
 
     // Draw all the components that make the page layout
     for( WS_DRAW_ITEM_BASE* item = drawList.GetFirst(); item; item = drawList.GetNext() )

eeschema/sch_view.cpp

@@ -96,6 +96,7 @@ void SCH_VIEW::DisplaySheet( SCH_SCREEN *aScreen )
     m_worksheet->SetSheetCount( aScreen->m_NumberOfScreens );
     m_worksheet->SetFileName( TO_UTF8( aScreen->GetFileName() ) );
     m_worksheet->SetColorLayer( LAYER_SCHEMATIC_WORKSHEET );
+    m_worksheet->SetPageBorderColorLayer( LAYER_SCHEMATIC_GRID );
 
     if( m_frame && m_frame->IsType( FRAME_SCH ) )
         m_worksheet->SetSheetName( TO_UTF8( m_frame->GetScreenDesc() ) );

include/ws_proxy_view_item.h

@@ -80,6 +80,15 @@ public:
         m_colorLayer = aLayerId;
     }
 
+    /**
+     * Overrides the layer used to pick the color of the page border (normally LAYER_GRID)
+     * @param aLayerId is the layer to use
+     */
+    void SetPageBorderColorLayer( int aLayerId )
+    {
+        m_pageBorderColorLayer = aLayerId;
+    }
+
     const PAGE_INFO& GetPageInfo() { return *m_pageInfo; }
     const TITLE_BLOCK& GetTitleBlock() { return *m_titleBlock; }
 
@@ -124,6 +133,9 @@ protected:
 
     /// Layer that is used for worksheet color (LAYER_WORKSHEET is always used for visibility)
     int                m_colorLayer;
+
+    /// Layer that is used for page border color
+    int                m_pageBorderColorLayer;
 };
 }