diff --git a/src/slic3r/GUI/SysInfoDialog.cpp b/src/slic3r/GUI/SysInfoDialog.cpp
index f1f459982..1c449c4cd 100644
--- a/src/slic3r/GUI/SysInfoDialog.cpp
+++ b/src/slic3r/GUI/SysInfoDialog.cpp
@@ -46,7 +46,7 @@ SysInfoDialog::SysInfoDialog()
     hsizer->SetMinSize(wxSize(50 * wxGetApp().em_unit(), -1));
 
 	auto main_sizer = new wxBoxSizer(wxVERTICAL);
-	main_sizer->Add(hsizer, 0, wxEXPAND | wxALL, 10);
+	main_sizer->Add(hsizer, 1, wxEXPAND | wxALL, 10);
 
     // logo
 	wxBitmap logo_bmp = wxBitmap(from_u8(Slic3r::var("Slic3r_192px.png")), wxBITMAP_TYPE_PNG);
@@ -93,8 +93,6 @@ SysInfoDialog::SysInfoDialog()
         vsizer->Add(html, 1, wxEXPAND | wxBOTTOM, wxGetApp().em_unit());
     }
 
-//    hsizer->Add(vsizer, 1, wxEXPAND | wxLEFT, 20);
-//    main_sizer->Add(hsizer, 1, wxEXPAND | wxALL, 10);
     // opengl_info
     wxHtmlWindow* opengl_info_html = new wxHtmlWindow(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxHW_SCROLLBAR_AUTO);
     {
diff --git a/src/slic3r/GUI/wxExtensions.cpp b/src/slic3r/GUI/wxExtensions.cpp
index c7856e750..3370d3a7f 100644
--- a/src/slic3r/GUI/wxExtensions.cpp
+++ b/src/slic3r/GUI/wxExtensions.cpp
@@ -1454,7 +1454,7 @@ PrusaDoubleSlider::PrusaDoubleSlider(wxWindow *parent,
     Bind(wxEVT_RIGHT_UP,    &PrusaDoubleSlider::OnRightUp,  this);
 
     // control's view variables
-    SLIDER_MARGIN     = 4 + (style == wxSL_HORIZONTAL ? m_bmp_thumb_higher.GetWidth() : m_bmp_thumb_higher.GetHeight());
+    SLIDER_MARGIN     = 4 + Slic3r::GUI::wxGetApp().em_unit();//(style == wxSL_HORIZONTAL ? m_bmp_thumb_higher.GetWidth() : m_bmp_thumb_higher.GetHeight());
 
     DARK_ORANGE_PEN   = wxPen(wxColour(253, 84, 2));
     ORANGE_PEN        = wxPen(wxColour(253, 126, 66));
@@ -1480,7 +1480,7 @@ wxSize PrusaDoubleSlider::DoGetBestSize() const
     const wxSize size = wxControl::DoGetBestSize();
     if (size.x > 1 && size.y > 1)
         return size;
-    const int new_size = is_horizontal() ? 6 * Slic3r::GUI::wxGetApp().em_unit() : 10 * Slic3r::GUI::wxGetApp().em_unit();
+    const int new_size = is_horizontal() ? 6 * Slic3r::GUI::wxGetApp().em_unit() : 8 * Slic3r::GUI::wxGetApp().em_unit();
     return wxSize(new_size, new_size);
 }