diff --git a/src/slic3r/GUI/GCodeViewer.cpp b/src/slic3r/GUI/GCodeViewer.cpp
index a158fc7..cac30af 100644
--- a/src/slic3r/GUI/GCodeViewer.cpp
+++ b/src/slic3r/GUI/GCodeViewer.cpp
@@ -3215,7 +3215,7 @@ void GCodeViewer::render_legend(float& legend_height)
 
     imgui.set_next_window_pos(0.0f, 0.0f, ImGuiCond_Always);
     ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
-    ImGui::SetNextWindowBgAlpha(0.6f);
+    ImGui::SetNextWindowBgAlpha(0.8f);
     const float max_height = 0.75f * static_cast<float>(cnv_size.get_height());
     const float child_height = 0.3333f * max_height;
     ImGui::SetNextWindowSizeConstraints({ 0.0f, 0.0f }, { -1.0f, max_height });