diff --git a/xs/src/slic3r/GUI/RammingChart.cpp b/xs/src/slic3r/GUI/RammingChart.cpp
index ca76298af..1ef43be02 100644
--- a/xs/src/slic3r/GUI/RammingChart.cpp
+++ b/xs/src/slic3r/GUI/RammingChart.cpp
@@ -15,6 +15,11 @@ wxDEFINE_EVENT(EVT_WIPE_TOWER_CHART_CHANGED, wxCommandEvent);
 
 void Chart::draw() {
     wxAutoBufferedPaintDC dc(this); // unbuffered DC caused flickering on win
+
+    dc.SetBrush(GetBackgroundColour());
+    dc.SetPen(GetBackgroundColour());
+    dc.DrawRectangle(GetClientRect());  // otherwise the background would end up black on windows
+
     dc.SetPen(*wxBLACK_PEN);
     dc.SetBrush(*wxWHITE_BRUSH);
     dc.DrawRectangle(m_rect);
diff --git a/xs/src/slic3r/GUI/WipeTowerDialog.cpp b/xs/src/slic3r/GUI/WipeTowerDialog.cpp
index 421ae272d..b34de0745 100644
--- a/xs/src/slic3r/GUI/WipeTowerDialog.cpp
+++ b/xs/src/slic3r/GUI/WipeTowerDialog.cpp
@@ -14,6 +14,13 @@ RammingDialog::RammingDialog(wxWindow* parent,const std::string& parameters)
 : wxDialog(parent, wxID_ANY, _(L("Ramming customization")), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE/* | wxRESIZE_BORDER*/)
 {
     m_panel_ramming  = new RammingPanel(this,parameters);
+
+    // Not found another way of getting the background colours of RammingDialog, RammingPanel and Chart correct than setting
+    // them all explicitely. Reading the parent colour yielded colour that didn't really match it, no wxSYS_COLOUR_... matched
+    // colour used for the dialog. Same issue (and "solution") here : https://forums.wxwidgets.org/viewtopic.php?f=1&t=39608
+    // Whoever can fix this, feel free to do so.
+    this->           SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_FRAMEBK));
+    m_panel_ramming->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_FRAMEBK));
     m_panel_ramming->Show(true);
     this->Show();
 
@@ -63,6 +70,7 @@ RammingPanel::RammingPanel(wxWindow* parent, const std::string& parameters)
 		buttons.push_back(std::make_pair(x, y));
 
 	m_chart = new Chart(this, wxRect(10, 10, 480, 360), buttons, ramming_speed_size, 0.25f);
+    m_chart->SetBackgroundColour(parent->GetBackgroundColour()); // see comment in RammingDialog constructor
  	sizer_chart->Add(m_chart, 0, wxALL, 5);
 
     m_widget_time						= new wxSpinCtrlDouble(this,wxID_ANY,wxEmptyString,wxDefaultPosition,wxSize(75, -1),wxSP_ARROW_KEYS,0.,5.0,3.,0.5);