diff --git a/resources/shaders/options_110.vs b/resources/shaders/options_110.vs
index 7592f86a4..5f2ab2350 100644
--- a/resources/shaders/options_110.vs
+++ b/resources/shaders/options_110.vs
@@ -1,11 +1,22 @@
 #version 110
 
+uniform bool use_fixed_screen_size;
 uniform float zoom;
 uniform float point_size;
 uniform float near_plane_height;
 
+float fixed_screen_size()
+{
+    return point_size;
+}
+
+float fixed_world_size()
+{
+    return (gl_Position.w == 1.0) ? zoom * near_plane_height * point_size : near_plane_height * point_size / gl_Position.w;
+}
+
 void main()
 {
     gl_Position = ftransform();
-    gl_PointSize = (gl_Position.w == 1.0) ? zoom * near_plane_height * point_size : near_plane_height * point_size / gl_Position.w;
+    gl_PointSize = use_fixed_screen_size ? fixed_screen_size() : fixed_world_size();
 }
diff --git a/resources/shaders/options_120.vs b/resources/shaders/options_120.vs
index baf3cd3a7..edb503fb2 100644
--- a/resources/shaders/options_120.vs
+++ b/resources/shaders/options_120.vs
@@ -1,11 +1,22 @@
 #version 120
 
+uniform bool use_fixed_screen_size;
 uniform float zoom;
 uniform float point_size;
 uniform float near_plane_height;
 
+float fixed_screen_size()
+{
+    return point_size;
+}
+
+float fixed_world_size()
+{
+    return (gl_Position.w == 1.0) ? zoom * near_plane_height * point_size : near_plane_height * point_size / gl_Position.w;
+}
+
 void main()
 {
     gl_Position = ftransform();
-    gl_PointSize = (gl_Position.w == 1.0) ? zoom * near_plane_height * point_size : near_plane_height * point_size / gl_Position.w;
+    gl_PointSize = use_fixed_screen_size ? fixed_screen_size() : fixed_world_size();
 }
diff --git a/src/libslic3r/Technologies.hpp b/src/libslic3r/Technologies.hpp
index a5d2d4682..7b30958a9 100644
--- a/src/libslic3r/Technologies.hpp
+++ b/src/libslic3r/Technologies.hpp
@@ -65,4 +65,12 @@
 #define ENABLE_CTRL_M_ON_WINDOWS (0 && ENABLE_2_3_0_ALPHA3)
 
 
+//===================
+// 2.3.0.alpha4 techs
+//===================
+#define ENABLE_2_3_0_ALPHA4 1
+
+#define ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS (1 && ENABLE_GCODE_VIEWER && ENABLE_2_3_0_ALPHA4)
+
+
 #endif // _prusaslicer_technologies_h_
diff --git a/src/slic3r/GUI/GCodeViewer.cpp b/src/slic3r/GUI/GCodeViewer.cpp
index 383ef5eb0..5e2702b3c 100644
--- a/src/slic3r/GUI/GCodeViewer.cpp
+++ b/src/slic3r/GUI/GCodeViewer.cpp
@@ -1883,7 +1883,11 @@ void GCodeViewer::refresh_render_paths(bool keep_sequential_current_first, bool
 
 void GCodeViewer::render_toolpaths() const
 {
+#if ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS
+    float point_size = 20.0f;
+#else
     float point_size = 0.8f;
+#endif // ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS
     std::array<float, 4> light_intensity = { 0.25f, 0.70f, 0.75f, 0.75f };
     const Camera& camera = wxGetApp().plater()->get_camera();
     double zoom = camera.get_zoom();
@@ -1899,6 +1903,11 @@ void GCodeViewer::render_toolpaths() const
     auto render_as_points = [this, zoom, point_size, near_plane_height, set_uniform_color]
     (const TBuffer& buffer, unsigned int index_buffer_id, EOptionsColors color_id, GLShaderProgram& shader) {
         set_uniform_color(Options_Colors[static_cast<unsigned int>(color_id)], shader);
+#if ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS
+        shader.set_uniform("use_fixed_screen_size", 1);
+#else
+        shader.set_uniform("use_fixed_screen_size", 0);
+#endif // ENABLE_FIXED_SCREEN_SIZE_POINT_MARKERS
         shader.set_uniform("zoom", zoom);
         shader.set_uniform("percent_outline_radius", 0.0f);
         shader.set_uniform("percent_center_radius", 0.33f);