Fixed size/padding of slider grab box for vertical symetry (was 1 pixel too high)

imgui.cpp

@@ -3284,7 +3284,7 @@ bool SliderFloat(const char* label, float* v, float v_min, float v_max, const ch
 
         // Draw
         const float grab_x = ImLerp(slider_effective_x1, slider_effective_x2, grab_t);
-        const ImGuiAabb grab_bb(ImVec2(grab_x-grab_size_in_pixels*0.5f,frame_bb.Min.y+2.0f), ImVec2(grab_x+grab_size_in_pixels*0.5f,frame_bb.Max.y-1.0f));
+        const ImGuiAabb grab_bb(ImVec2(grab_x-grab_size_in_pixels*0.5f,frame_bb.Min.y+2.0f), ImVec2(grab_x+grab_size_in_pixels*0.5f,frame_bb.Max.y-2.0f));
         window->DrawList->AddRectFilled(grab_bb.Min, grab_bb.Max, window->Color(g.ActiveId == id ? ImGuiCol_SliderGrabActive : ImGuiCol_SliderGrab));
     }