diff --git a/interface/wx/bitmap.h b/interface/wx/bitmap.h
index 7f06e9cec6..b39d1a6faa 100644
--- a/interface/wx/bitmap.h
+++ b/interface/wx/bitmap.h
@@ -837,8 +837,8 @@ public:
         This function is just a convenient wrapper for wxImage::Rescale() used
         to resize the given @a bmp to the requested size. If you need more
         control over resizing, e.g. to specify the quality option different
-        from ::wxIMAGE_QUALITY_HIGH used by default, please use wxImage
-        function directly instead.
+        from ::wxIMAGE_QUALITY_NEAREST used by this function, please use the
+        wxImage function directly instead.
 
         Both the bitmap itself and size must be valid.
 
diff --git a/src/common/bmpbase.cpp b/src/common/bmpbase.cpp
index d511ee5a04..320a80ebb3 100644
--- a/src/common/bmpbase.cpp
+++ b/src/common/bmpbase.cpp
@@ -70,8 +70,11 @@ void wxBitmapHelpers::Rescale(wxBitmap& bmp, const wxSize& sizeNeeded)
     wxCHECK_RET( sizeNeeded.IsFullySpecified(), wxS("New size must be given") );
 
 #if wxUSE_IMAGE
+    // Note that we use "nearest" rescale mode here to preserve sharp edges in
+    // the icons for which this function is often used. It's also consistent
+    // with what wxDC::DrawBitmap() does, i.e. the fallback method below.
     wxImage img = bmp.ConvertToImage();
-    img.Rescale(sizeNeeded.x, sizeNeeded.y, wxIMAGE_QUALITY_HIGH);
+    img.Rescale(sizeNeeded.x, sizeNeeded.y, wxIMAGE_QUALITY_NEAREST);
     bmp = wxBitmap(img);
 #else // !wxUSE_IMAGE
     // Fallback method of scaling the bitmap