Examples: Comments, synched some minor drift between examples + stronger suggestion to use StyleColorsDark().

examples/allegro5_example/main.cpp

@@ -25,6 +25,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplA5_Init(display);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -69,14 +73,16 @@ int main(int, char**)
         ImGui_ImplA5_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
-            static float f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            static float f = 0.0f;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -91,7 +97,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/apple_example/imguiex-ios/debug_hud.cpp

@@ -28,7 +28,7 @@ void DebugHUD_DoInterface(DebugHUD *hud)
 {
     if (hud->show_demo_window)
     {
-        ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+        ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
         ImGui::ShowDemoWindow(&hud->show_demo_window );
     }
     

examples/directx10_example/main.cpp

@@ -125,6 +125,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplDX10_Init(hwnd, g_pd3dDevice);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -163,14 +167,16 @@ int main(int, char**)
         ImGui_ImplDX10_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -185,7 +191,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);     // Normally user code doesn't need/want to call it because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/directx11_example/main.cpp

@@ -128,6 +128,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplDX11_Init(hwnd, g_pd3dDevice, g_pd3dDeviceContext);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -166,14 +170,16 @@ int main(int, char**)
         ImGui_ImplDX11_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -188,7 +194,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);     // Normally user code doesn't need/want to call it because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/directx9_example/main.cpp

@@ -77,6 +77,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplDX9_Init(hwnd, g_pd3dDevice);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -117,14 +121,16 @@ int main(int, char**)
         ImGui_ImplDX9_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -139,7 +145,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/marmalade_example/main.cpp

@@ -17,6 +17,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_Marmalade_Init(true);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -52,14 +56,16 @@ int main(int, char**)
         ImGui_Marmalade_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -74,7 +80,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/opengl2_example/main.cpp

@@ -29,6 +29,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplGlfwGL2_Init(window, true);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -60,14 +64,16 @@ int main(int, char**)
         ImGui_ImplGlfwGL2_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -82,7 +88,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/opengl3_example/main.cpp

@@ -34,6 +34,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplGlfwGL3_Init(window, true);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -65,14 +69,16 @@ int main(int, char**)
         ImGui_ImplGlfwGL3_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window")) 
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -87,7 +93,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/sdl_opengl2_example/main.cpp

@@ -35,6 +35,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplSdlGL2_Init(window);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -73,14 +77,16 @@ int main(int, char**)
         ImGui_ImplSdlGL2_NewFrame(window);
 
         // 1. Show a simple window
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -95,7 +101,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/sdl_opengl3_example/main.cpp

@@ -35,6 +35,10 @@ int main(int, char**)
     // Setup ImGui binding
     ImGui_ImplSdlGL3_Init(window);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -73,14 +77,16 @@ int main(int, char**)
         ImGui_ImplSdlGL3_NewFrame(window);
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -95,7 +101,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }
 

examples/vulkan_example/main.cpp

@@ -625,6 +625,10 @@ int main(int, char**)
     init_data.check_vk_result = check_vk_result;
     ImGui_ImplGlfwVulkan_Init(window, true, &init_data);
 
+    // Setup style
+    ImGui::StyleColorsClassic();
+    //ImGui::StyleColorsDark();
+
     // Load Fonts
     // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. 
     // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. 
@@ -694,14 +698,16 @@ int main(int, char**)
         ImGui_ImplGlfwVulkan_NewFrame();
 
         // 1. Show a simple window.
-        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets appears in a window automatically called "Debug".
+        // Tip: if we don't call ImGui::Begin()/ImGui::End() the widgets automatically appears in a window called "Debug".
         {
             static float f = 0.0f;
-            ImGui::Text("Hello, world!");
-            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);
-            ImGui::ColorEdit3("clear color", (float*)&clear_color);
-            if (ImGui::Button("Demo Window")) show_demo_window ^= 1;
-            if (ImGui::Button("Another Window")) show_another_window ^= 1;
+            ImGui::Text("Hello, world!");                           // Some text (you can use a format string too)
+            ImGui::SliderFloat("float", &f, 0.0f, 1.0f);            // Edit 1 float as a slider from 0.0f to 1.0f
+            ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats as a color
+            if (ImGui::Button("Demo Window"))                       // Use buttons to toggle our bools. We could use Checkbox() as well.
+                show_demo_window ^= 1;
+            if (ImGui::Button("Another Window"))
+                show_another_window ^= 1;
             ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
         }
 
@@ -716,7 +722,7 @@ int main(int, char**)
         // 3. Show the ImGui demo window. Most of the sample code is in ImGui::ShowDemoWindow().
         if (show_demo_window)
         {
-            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver);
+            ImGui::SetNextWindowPos(ImVec2(650, 20), ImGuiCond_FirstUseEver); // Normally user code doesn't need/want to call this because positions are saved in .ini file anyway. Here we just want to make the demo initial state a bit more friendly!
             ImGui::ShowDemoWindow(&show_demo_window);
         }