diff --git a/src/DebugTools/ForceRenderer.h b/src/DebugTools/ForceRenderer.h
index 2a947e8aa..d9494a212 100644
--- a/src/DebugTools/ForceRenderer.h
+++ b/src/DebugTools/ForceRenderer.h
@@ -47,7 +47,7 @@ class ForceRendererOptions {
         inline constexpr ForceRendererOptions(): _size(1.0f) {}
 
         /** @brief Color of rendered arrow */
-        inline constexpr Color3<> color() const { return _color; }
+        inline constexpr Color4<> color() const { return _color; }
 
         /**
          * @brief Set color of rendered arrow
@@ -55,7 +55,7 @@ class ForceRendererOptions {
          *
          * Default is black.
          */
-        inline ForceRendererOptions* setColor(const Color3<>& color) {
+        inline ForceRendererOptions* setColor(const Color4<>& color) {
             _color = color;
             return this;
         }
@@ -75,7 +75,7 @@ class ForceRendererOptions {
         }
 
     private:
-        Color3<> _color;
+        Color4<> _color;
         Float _size;
 };
 
diff --git a/src/DebugTools/ShapeRenderer.h b/src/DebugTools/ShapeRenderer.h
index 354286c02..5a73819d3 100644
--- a/src/DebugTools/ShapeRenderer.h
+++ b/src/DebugTools/ShapeRenderer.h
@@ -60,7 +60,7 @@ class ShapeRendererOptions {
         inline constexpr ShapeRendererOptions(): _pointSize(0.25f) {}
 
         /** @brief Color of rendered shape */
-        inline constexpr Color3<> color() const { return _color; }
+        inline constexpr Color4<> color() const { return _color; }
 
         /**
          * @brief Set color of rendered shape
@@ -68,7 +68,7 @@ class ShapeRendererOptions {
          *
          * Default is black.
          */
-        inline ShapeRendererOptions* setColor(const Color3<>& color) {
+        inline ShapeRendererOptions* setColor(const Color4<>& color) {
             _color = color;
             return this;
         }
@@ -89,7 +89,7 @@ class ShapeRendererOptions {
         }
 
     private:
-        Color3<> _color;
+        Color4<> _color;
         Float _pointSize;
 };
 
diff --git a/src/Platform/GlutApplication.cpp b/src/Platform/GlutApplication.cpp
index ca9765030..38741a3fb 100644
--- a/src/Platform/GlutApplication.cpp
+++ b/src/Platform/GlutApplication.cpp
@@ -96,7 +96,7 @@ void GlutApplication::staticMouseMoveEvent(int x, int y) {
     instance->mouseMoveEvent(e);
 }
 
-GlutApplication::Configuration::Configuration(): _title("Magnum GLUT Application"), _size(800, 600) {}
+GlutApplication::Configuration::Configuration(): _title("Magnum GLUT Application"), _size(800, 600), _sampleCount(0) {}
 GlutApplication::Configuration::~Configuration() = default;
 
 }}
diff --git a/src/Platform/NaClApplication.cpp b/src/Platform/NaClApplication.cpp
index 6e7509b2d..4b82e6e6f 100644
--- a/src/Platform/NaClApplication.cpp
+++ b/src/Platform/NaClApplication.cpp
@@ -49,8 +49,8 @@ void NaClApplication::createContext(NaClApplication::Configuration* configuratio
         PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8,
         PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 24,
         PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 8,
-        PP_GRAPHICS3DATTRIB_SAMPLES, 0,
-        PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
+        PP_GRAPHICS3DATTRIB_SAMPLES, configuration->sampleCount(),
+        PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, configuration->sampleCount() > 1? 1 : 0,
         PP_GRAPHICS3DATTRIB_WIDTH, configuration->size().x(),
         PP_GRAPHICS3DATTRIB_HEIGHT, configuration->size().y(),
         PP_GRAPHICS3DATTRIB_NONE
@@ -223,7 +223,7 @@ void NaClApplication::mouseLockCallback(void* applicationInstance, std::int32_t)
     instance->flags |= Flag::MouseLocked;
 }
 
-NaClApplication::Configuration::Configuration(): _size(640, 480) {}
+NaClApplication::Configuration::Configuration(): _size(640, 480), _sampleCount(0) {}
 NaClApplication::Configuration::~Configuration() = default;
 
 }}
diff --git a/src/Platform/NaClApplication.h b/src/Platform/NaClApplication.h
index f44ff896e..46419c989 100644
--- a/src/Platform/NaClApplication.h
+++ b/src/Platform/NaClApplication.h
@@ -271,8 +271,24 @@ class NaClApplication::Configuration {
             return this;
         }
 
+        /** @brief Sample count */
+        inline Int sampleCount() const { return _sampleCount; }
+
+        /**
+         * @brief Set sample count
+         * @return Pointer to self (for method chaining)
+         *
+         * Default is `0`, thus no multisampling. See also
+         * @ref Renderer::Feature "Renderer::Feature::Multisampling".
+         */
+        inline Configuration* setSampleCount(Int count) {
+            _sampleCount = count;
+            return this;
+        }
+
     private:
         Vector2i _size;
+        Int _sampleCount;
 };
 
 /**
diff --git a/src/Platform/Sdl2Application.cpp b/src/Platform/Sdl2Application.cpp
index 164f4601e..d5f9a1850 100644
--- a/src/Platform/Sdl2Application.cpp
+++ b/src/Platform/Sdl2Application.cpp
@@ -167,7 +167,7 @@ void Sdl2Application::setMouseLocked(bool enabled) {
     SDL_SetRelativeMouseMode(enabled ? SDL_TRUE : SDL_FALSE);
 }
 
-Sdl2Application::Configuration::Configuration(): _title("Magnum SDL2 Application"), _size(800, 600) {}
+Sdl2Application::Configuration::Configuration(): _title("Magnum SDL2 Application"), _size(800, 600), _sampleCount(0) {}
 Sdl2Application::Configuration::~Configuration() = default;
 
 Sdl2Application::InputEvent::Modifiers Sdl2Application::MouseEvent::modifiers() {
diff --git a/src/Shaders/FlatShader.frag b/src/Shaders/FlatShader.frag
index d27192d22..8f3066029 100644
--- a/src/Shaders/FlatShader.frag
+++ b/src/Shaders/FlatShader.frag
@@ -27,9 +27,9 @@
 #endif
 
 #ifdef EXPLICIT_UNIFORM_LOCATION
-layout(location = 1) uniform vec3 color;
+layout(location = 1) uniform vec4 color;
 #else
-uniform lowp vec3 color;
+uniform lowp vec4 color;
 #endif
 
 #ifdef NEW_GLSL
@@ -37,5 +37,5 @@ out lowp vec4 fragmentColor;
 #endif
 
 void main() {
-    fragmentColor = vec4(color, 1.0);
+    fragmentColor = color;
 }
diff --git a/src/Shaders/FlatShader.h b/src/Shaders/FlatShader.h
index e2ff47e63..71f5e7d49 100644
--- a/src/Shaders/FlatShader.h
+++ b/src/Shaders/FlatShader.h
@@ -64,7 +64,7 @@ template<UnsignedInt dimensions> class MAGNUM_SHADERS_EXPORT FlatShader: public
          * @brief Set color
          * @return Pointer to self (for method chaining)
          */
-        FlatShader<dimensions>* setColor(const Color3<>& color) {
+        FlatShader<dimensions>* setColor(const Color4<>& color) {
             setUniform(colorUniform, color);
             return this;
         }