diff --git a/src/GUI/ColorScheme/Default.hpp b/src/GUI/ColorScheme/Default.hpp
index 69b7e0a98..2adb8cc61 100644
--- a/src/GUI/ColorScheme/Default.hpp
+++ b/src/GUI/ColorScheme/Default.hpp
@@ -7,7 +7,7 @@ class DefaultColor : public ColorScheme {
 public:
     const std::string name() const { return "Default"; }
     const bool SOLID_BACKGROUNDCOLOR() const { return false; };
-    const wxColour SELECTED_COLOR() const { return wxColour(0, 1, 0); };
+    const wxColour SELECTED_COLOR() const { return wxColour(0, 255, 0); };
     const wxColour HOVER_COLOR() const { return wxColour(255*0.4, 255*0.9, 0); };            //<Hover over Model
     const wxColour TOP_COLOR() const { return wxColour(10,98,144); };    //<TOP Backgroud color
     const wxColour BOTTOM_COLOR() const { return wxColour(0,0,0); };                 //<BOTTOM Backgroud color
@@ -15,10 +15,10 @@ public:
     const wxColour GRID_COLOR() const { return wxColour(255*0.2, 255*0.2, 255*0.2, 255*0.4); };      //<Grid color
     const wxColour GROUND_COLOR() const { return wxColour(255*0.8, 255*0.6, 255*0.5, 255*0.4); };    //<Ground or Plate color
     const wxColour COLOR_CUTPLANE() const { return wxColour(255*0.8, 255*0.8, 255*0.8, 255*0.5); };
-    const wxColour COLOR_PARTS() const { return wxColour(1, 255*0.95, 255*0.2, 1); };        //<Perimeter color
-    const wxColour COLOR_INFILL() const { return wxColour(1, 255*0.45, 255*0.45, 1); };
-    const wxColour COLOR_SUPPORT() const { return wxColour(255*0.5, 1, 255*0.5, 1); };
-    const wxColour COLOR_UNKNOWN() const { return wxColour(255*0.5, 255*0.5, 1, 1); };
+    const wxColour COLOR_PARTS() const { return wxColour(255, 255*0.95, 255*0.2); };        //<Perimeter color
+    const wxColour COLOR_INFILL() const { return wxColour(255, 255*0.45, 255*0.45); };
+    const wxColour COLOR_SUPPORT() const { return wxColour(255*0.5, 1, 255*0.5); };
+    const wxColour COLOR_UNKNOWN() const { return wxColour(255*0.5, 255*0.5, 1); };
     const wxColour BED_COLOR() const { return wxColour(255, 255, 255); };
     const wxColour BED_GRID() const { return wxColour(230, 230, 230); };
     const wxColour BED_SELECTED() const { return wxColour(255, 166, 128); };
diff --git a/src/GUI/Plater/Plate3D.cpp b/src/GUI/Plater/Plate3D.cpp
index 592effb34..1aa6544d8 100644
--- a/src/GUI/Plater/Plate3D.cpp
+++ b/src/GUI/Plater/Plate3D.cpp
@@ -46,7 +46,7 @@ void Plate3D::update(){
             } 
         }
     }
-
+    color_volumes();
 }
 
 void Plate3D::color_volumes(){
@@ -59,8 +59,9 @@ void Plate3D::color_volumes(){
                 if(object.selected){
                     rendervolume.color = ui_settings->color->SELECTED_COLOR();
                 }else{
-                    rendervolume.color = wxColor(255,255,0);//ui_settings->color->COLOR_PARTS(); <- invisible because alpha is 1 (out of 255)
+                    rendervolume.color = ui_settings->color->COLOR_PARTS();
                 }
+                i++;
             } 
         }
     }
@@ -74,7 +75,7 @@ void Plate3D::before_render(){
 
     //glDisable(GL_MULTISAMPLE) if ($self->{can_multisample});
     glDisable(GL_LIGHTING);
-    uint i = 0;
+    uint i = 1;
     for(Volume &volume : volumes){
         volume.color = wxColor((i>>16)&0xFF,(i>>8)&0xFF,i&0xFF);
         i++;
@@ -82,16 +83,16 @@ void Plate3D::before_render(){
     draw_volumes();
     glFlush();
     glFinish();
-    GLubyte color[4] = {0,0,0,0}; 
-    glReadPixels(pos.x, /*offset*/GetSize().GetHeight()-  pos.y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, color);
+    GLubyte color[4] = {0,0,0,0};
+    glReadPixels(pos.x, GetSize().GetHeight()-  pos.y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, color);
 
-    uint index = color[0] + (color[1]<<8) + (color[2]<<16);
+    uint index = (color[0]<<16) + (color[1]<<8) + color[2];
     hover = false;
     ///*$self->_hover_volume_idx(undef);
     //$_->hover(0) for @{$self->volumes};
-    if (index < volumes.size()) {
+    if (index != 0 && index <= volumes.size()) {
         hover = true;
-        hover_volume = index;
+        hover_volume = index - 1;
         /*
         $self->volumes->[$volume_idx]->hover(1);
         my $group_id = $self->volumes->[$volume_idx]->select_group_id;
@@ -105,7 +106,7 @@ void Plate3D::before_render(){
     glFlush();
     glFinish();
     glEnable(GL_LIGHTING);
-    color_volumes();    
+    color_volumes();
     mouse = false;
 }