diff --git a/examples/ggwave-gui/main.cpp b/examples/ggwave-gui/main.cpp
index eed80e3..8c1d6a0 100644
--- a/examples/ggwave-gui/main.cpp
+++ b/examples/ggwave-gui/main.cpp
@@ -81,6 +81,68 @@ int main(int argc, char** argv) {
 
     ImGui_Init(g_window, g_gl_context);
 
+    ImGuiStyle & style = ImGui::GetStyle();
+
+    style.AntiAliasedFill = false;
+    style.AntiAliasedLines = false;
+    style.WindowRounding = 0.0f;
+
+    style.WindowPadding = ImVec2(8, 8);
+    style.WindowRounding = 0.0f;
+    style.FramePadding = ImVec2(4, 3);
+    style.FrameRounding = 0.0f;
+    style.ItemSpacing = ImVec2(8, 4);
+    style.ItemInnerSpacing = ImVec2(4, 4);
+    style.IndentSpacing = 21.0f;
+    style.ScrollbarSize = 16.0f;
+    style.ScrollbarRounding = 9.0f;
+    style.GrabMinSize = 10.0f;
+    style.GrabRounding = 3.0f;
+
+    style.Colors[ImGuiCol_Text]                  = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
+    style.Colors[ImGuiCol_TextDisabled]          = ImVec4(0.24f, 0.41f, 0.41f, 1.00f);
+    style.Colors[ImGuiCol_WindowBg]              = ImVec4(0.08f, 0.08f, 0.08f, 0.94f);
+    //style.Colors[ImGuiCol_ChildWindowBg]         = ImVec4(0.07f, 0.07f, 0.09f, 1.00f);
+    style.Colors[ImGuiCol_PopupBg]               = ImVec4(0.07f, 0.07f, 0.09f, 1.00f);
+    style.Colors[ImGuiCol_Border]                = ImVec4(0.31f, 0.31f, 0.31f, 0.71f);
+    style.Colors[ImGuiCol_BorderShadow]          = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    style.Colors[ImGuiCol_FrameBg]               = ImVec4(0.00f, 0.39f, 0.39f, 0.39f);
+    style.Colors[ImGuiCol_FrameBgHovered]        = ImVec4(0.26f, 1.00f, 1.00f, 0.39f);
+    style.Colors[ImGuiCol_FrameBgActive]         = ImVec4(0.00f, 0.78f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_TitleBg]               = ImVec4(0.00f, 0.50f, 0.50f, 0.70f);
+    style.Colors[ImGuiCol_TitleBgCollapsed]      = ImVec4(0.00f, 0.50f, 0.50f, 1.00f);
+    style.Colors[ImGuiCol_TitleBgActive]         = ImVec4(0.00f, 0.70f, 0.70f, 1.00f);
+    style.Colors[ImGuiCol_MenuBarBg]             = ImVec4(0.00f, 0.70f, 0.70f, 1.00f);
+    style.Colors[ImGuiCol_ScrollbarBg]           = ImVec4(0.10f, 0.27f, 0.27f, 1.00f);
+    style.Colors[ImGuiCol_ScrollbarGrab]         = ImVec4(0.80f, 0.80f, 0.83f, 0.31f);
+    style.Colors[ImGuiCol_ScrollbarGrabHovered]  = ImVec4(0.26f, 1.00f, 1.00f, 0.39f);
+    style.Colors[ImGuiCol_ScrollbarGrabActive]   = ImVec4(0.00f, 0.78f, 0.00f, 1.00f);
+    //style.Colors[ImGuiCol_ComboBg]               = ImVec4(0.00f, 0.39f, 0.39f, 1.00f);
+    style.Colors[ImGuiCol_CheckMark]             = ImVec4(0.80f, 0.80f, 0.83f, 0.39f);
+    style.Colors[ImGuiCol_SliderGrab]            = ImVec4(0.80f, 0.80f, 0.83f, 0.39f);
+    style.Colors[ImGuiCol_SliderGrabActive]      = ImVec4(0.00f, 0.78f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_Button]                = ImVec4(0.13f, 0.55f, 0.55f, 1.00f);
+    style.Colors[ImGuiCol_ButtonHovered]         = ImVec4(0.61f, 1.00f, 0.00f, 0.51f);
+    style.Colors[ImGuiCol_ButtonActive]          = ImVec4(0.00f, 0.78f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_Header]                = ImVec4(0.79f, 0.51f, 0.00f, 0.51f);
+    style.Colors[ImGuiCol_HeaderHovered]         = ImVec4(0.79f, 0.51f, 0.00f, 0.67f);
+    style.Colors[ImGuiCol_HeaderActive]          = ImVec4(0.79f, 0.51f, 0.00f, 0.67f);
+    //style.Colors[ImGuiCol_Column]                = ImVec4(0.79f, 0.51f, 0.00f, 0.67f);
+    //style.Colors[ImGuiCol_ColumnHovered]         = ImVec4(0.25f, 1.00f, 0.00f, 1.00f);
+    //style.Colors[ImGuiCol_ColumnActive]          = ImVec4(0.79f, 0.51f, 0.00f, 0.67f);
+    style.Colors[ImGuiCol_ResizeGrip]            = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
+    style.Colors[ImGuiCol_ResizeGripHovered]     = ImVec4(0.26f, 1.00f, 1.00f, 0.39f);
+    style.Colors[ImGuiCol_ResizeGripActive]      = ImVec4(0.00f, 0.78f, 0.00f, 1.00f);
+    //style.Colors[ImGuiCol_CloseButton]           = ImVec4(0.40f, 0.39f, 0.38f, 0.16f);
+    //style.Colors[ImGuiCol_CloseButtonHovered]    = ImVec4(0.26f, 1.00f, 1.00f, 0.39f);
+    //style.Colors[ImGuiCol_CloseButtonActive]     = ImVec4(0.79f, 0.51f, 0.00f, 0.67f);
+    style.Colors[ImGuiCol_PlotLines]             = ImVec4(1.00f, 0.65f, 0.38f, 0.67f);
+    style.Colors[ImGuiCol_PlotLinesHovered]      = ImVec4(0.25f, 1.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_PlotHistogram]         = ImVec4(1.00f, 0.65f, 0.38f, 0.67f);
+    style.Colors[ImGuiCol_PlotHistogramHovered]  = ImVec4(0.25f, 1.00f, 0.00f, 1.00f);
+    style.Colors[ImGuiCol_TextSelectedBg]        = ImVec4(0.25f, 1.00f, 0.00f, 0.43f);
+    style.Colors[ImGuiCol_ModalWindowDarkening]  = ImVec4(1.00f, 0.98f, 0.95f, 0.78f);
+
     ImGui_NewFrame(g_window);
     ImGui::Render();
 
@@ -484,7 +546,11 @@ int main(int argc, char** argv) {
         if (windowId == WindowId::Spectrum) {
             ImGui::BeginChild("Spectrum:main", ImGui::GetContentRegionAvail(), true);
             ImGui::PushTextWrapPos();
-            ImGui::Text("FPS: %g\n", ImGui::GetIO().Framerate);
+            {
+                auto posSave = ImGui::GetCursorScreenPos();
+                ImGui::Text("FPS: %4.2f\n", ImGui::GetIO().Framerate);
+                ImGui::SetCursorScreenPos(posSave);
+            }
             if (spectrumCurrent.empty() == false) {
                 auto wSize = ImGui::GetContentRegionAvail();
                 ImGui::PushStyleColor(ImGuiCol_FrameBg, { 0.3f, 0.3f, 0.3f, 0.3f });