diff --git a/resources/images/toolbar_tooltip.svg b/resources/images/toolbar_tooltip.svg
index 49279b8ed9..d35366d600 100644
--- a/resources/images/toolbar_tooltip.svg
+++ b/resources/images/toolbar_tooltip.svg
@@ -1 +1 @@
-<?xml version="1.0" encoding="UTF-8"?><svg id="a" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 15 15"><rect x="7" y="12" width="1" height="1" style="fill:#fefefe;"/><path d="M4.5,5.5c0-1.71,1.43-3.09,3.16-3,1.62.08,2.84,1.54,2.84,3.17h0c0,.61-.25,1.2-.69,1.62l-2.31,2.24v.97" style="fill:none; stroke:#fefefe; stroke-linecap:round; stroke-linejoin:round;"/></svg>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?><svg id="a" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 15 15"><rect x="1.5" y="3.5" width="12" height="8" rx="1" ry="1" style="fill:none; stroke:#fefefe; stroke-linecap:round; stroke-linejoin:round;"/><path d="M3,5h1v1h-1Z M5,5h1v1h-1Z M7,5h1v1h-1Z M9,5h1v1h-1Z M11,5h1v1h-1Z M4,7h1v1h-1Z M6,7h1v1h-1Z M8,7h1v1h-1Z M10,7h1v1h-1Z M5,9h5v1h-5Z" style="fill:#fefefe;"/></svg>
\ No newline at end of file
diff --git a/src/slic3r/GUI/Gizmos/GLGizmoUtils.cpp b/src/slic3r/GUI/Gizmos/GLGizmoUtils.cpp
index 2b52fc486e..a162ed3095 100644
--- a/src/slic3r/GUI/Gizmos/GLGizmoUtils.cpp
+++ b/src/slic3r/GUI/Gizmos/GLGizmoUtils.cpp
@@ -83,11 +83,13 @@ namespace Slic3r::GUI::GLGizmoUtils {
         bool  clicked = toolbar_circular_button(icon, "##wiki_guide_btn", scale);
         if (url && *url && clicked)
             wxLaunchDefaultBrowser(wxString::FromUTF8(url));
+        // ImGuiWrapper::tooltip keeps the text readable on the dark tooltip background whatever text colour the
+        // host window pushed; a negative wrap position keeps the URL on one line.
         if (ImGui::IsItemHovered()){
             if(url && *url)
-                ImGui::SetTooltip("%s\n%s", _u8L("Wiki Guide").c_str(), url);
+                wxGetApp().imgui()->tooltip(_u8L("Wiki Guide") + "\n" + url, -1.f);
             else
-                ImGui::SetTooltip("%s", _u8L("Wiki Guide").c_str());
+                wxGetApp().imgui()->tooltip(_u8L("Wiki Guide"), -1.f);
         }
         return clicked; // for dynamically generated links
     }
@@ -101,9 +103,9 @@ namespace Slic3r::GUI::GLGizmoUtils {
             wxLaunchDefaultBrowser(wxString::FromUTF8(url));
         if (ImGui::IsItemHovered()){
             if(url && *url)
-                ImGui::SetTooltip("%s\n%s", _u8L("Video Guide").c_str(), url);
+                wxGetApp().imgui()->tooltip(_u8L("Video Guide") + "\n" + url, -1.f);
             else
-                ImGui::SetTooltip("%s", _u8L("Video Guide").c_str());
+                wxGetApp().imgui()->tooltip(_u8L("Video Guide"), -1.f);
         }
         return clicked; // for dynamically generated links
     }
diff --git a/src/slic3r/GUI/Gizmos/GizmoObjectManipulation.cpp b/src/slic3r/GUI/Gizmos/GizmoObjectManipulation.cpp
index 85e7f8180c..427eac8b9c 100644
--- a/src/slic3r/GUI/Gizmos/GizmoObjectManipulation.cpp
+++ b/src/slic3r/GUI/Gizmos/GizmoObjectManipulation.cpp
@@ -857,11 +857,12 @@ void GizmoObjectManipulation::do_render_move_window(ImGuiWrapper *imgui_wrapper,
     if (render_combo(imgui_wrapper, "", modes, selection_idx, 0, coord_combo_width)) {
         combox_changed = true;
     }
+    ImGuiWrapper::pop_combo_style();
+    // After pop_combo_style(): its light popup background would hide the tooltip's white text.
     if (ImGui::IsItemHovered()) {
         auto tooltip_str = _L("Coordinate system used for transform actions.");
         imgui_wrapper->tooltip(tooltip_str, imgui_wrapper->calc_text_size(tooltip_str).x + 3 * space_size);
     }
-    ImGuiWrapper::pop_combo_style();
 
     // ORCA use TextColored to match axes color
     float offset_to_center = (unit_size - ImGui::CalcTextSize("O").x) / 2;
@@ -964,11 +965,12 @@ void GizmoObjectManipulation::do_render_move_window(ImGuiWrapper *imgui_wrapper,
         if (render_combo(imgui_wrapper, "", align_modes, align_mode_idx, 0, coord_combo_width))
             m_align_to_parent = align_mode_idx + 1 == align_modes.size();
         ImGui::PopID();
+        ImGuiWrapper::pop_combo_style();
+        // After pop_combo_style(): its light popup background would hide the tooltip's white text.
         if (ImGui::IsItemHovered()) {
             wxString tooltip_str = _L("Reference for alignment");
             imgui_wrapper->tooltip(tooltip_str, imgui_wrapper->calc_text_size(tooltip_str).x + 3 * space_size);
         }
-        ImGuiWrapper::pop_combo_style();
 
         const bool dark_mode    = wxGetApp().dark_mode();
         int        current_axis = -1;
@@ -1377,11 +1379,12 @@ void GizmoObjectManipulation::do_render_scale_input_window(ImGuiWrapper* imgui_w
     if (render_combo(imgui_wrapper, "", modes, selection_idx, 0, coord_combo_width)) {
         combox_changed = true;
     }
+    ImGuiWrapper::pop_combo_style();
+    // After pop_combo_style(): its light popup background would hide the tooltip's white text.
     if (ImGui::IsItemHovered()) {
         auto tooltip_str = _L("Coordinate system used for transform actions.");
         imgui_wrapper->tooltip(tooltip_str, imgui_wrapper->calc_text_size(tooltip_str).x + 3 * space_size);
     }
-    ImGuiWrapper::pop_combo_style();
 
     // ORCA use TextColored to match axes color
     float offset_to_center = (unit_size - ImGui::CalcTextSize("O").x) / 2;