diff --git a/src/Math/Vector.h b/src/Math/Vector.h
index b698f88df..5beb7e22c 100644
--- a/src/Math/Vector.h
+++ b/src/Math/Vector.h
@@ -56,7 +56,7 @@ template<std::size_t size, class T> class Vector: public RectangularMatrix<1, si
          * @brief Angle between normalized vectors
          *
          * @f[
-         * \phi = \frac{a \cdot b}{|a| \cdot |b|}
+         * \phi = acos \left(\frac{a \cdot b}{|a| \cdot |b|} \right)
          * @f]
          * @attention Assertion fails on non-normalized vectors and NaN is
          *      returned.
diff --git a/src/Physics/Implementation/BoxRenderer.cpp b/src/Physics/Implementation/BoxRenderer.cpp
index 472af6781..31b609e73 100644
--- a/src/Physics/Implementation/BoxRenderer.cpp
+++ b/src/Physics/Implementation/BoxRenderer.cpp
@@ -28,8 +28,8 @@ namespace {
     template<std::uint8_t> struct BoxMesh {};
 
     template<> struct BoxMesh<2> {
-        constexpr static char shader[] = "shader2d";
-        constexpr static char key[] = "box2d";
+        constexpr static ResourceKey shader() { return {"shader2d"}; }
+        constexpr static ResourceKey key() { return {"box2d"}; }
 
         static Mesh* mesh(Buffer* buffer) {
             Primitives::Square square;
@@ -42,8 +42,8 @@ namespace {
     };
 
     template<> struct BoxMesh<3> {
-        constexpr static char shader[] = "shader3d";
-        constexpr static char key[] = "box3d";
+        constexpr static ResourceKey shader() { return {"shader3d"}; }
+        constexpr static ResourceKey key() { return {"box3d"}; }
 
         static Mesh* mesh(Buffer* buffer) {
             Primitives::Cube cube;
@@ -56,12 +56,7 @@ namespace {
     };
 }
 
-constexpr char BoxMesh<2>::shader[];
-constexpr char BoxMesh<2>::key[];
-constexpr char BoxMesh<3>::shader[];
-constexpr char BoxMesh<3>::key[];
-
-template<std::uint8_t dimensions> BoxRenderer<dimensions>::BoxRenderer(Box<dimensions>& box, ResourceKey options, typename SceneGraph::AbstractObject<dimensions>::ObjectType* parent): AbstractDebugRenderer<dimensions>(BoxMesh<dimensions>::shader, BoxMesh<dimensions>::key, options, parent), buffer(DebugDrawResourceManager::instance()->get<Buffer>(BoxMesh<dimensions>::key)), box(box) {
+template<std::uint8_t dimensions> BoxRenderer<dimensions>::BoxRenderer(Box<dimensions>& box, ResourceKey options, typename SceneGraph::AbstractObject<dimensions>::ObjectType* parent): AbstractDebugRenderer<dimensions>(BoxMesh<dimensions>::shader(), BoxMesh<dimensions>::key(), options, parent), buffer(DebugDrawResourceManager::instance()->get<Buffer>(BoxMesh<dimensions>::key())), box(box) {
     if(!this->mesh) {
         DebugDrawResourceManager::instance()->set(this->buffer.key(), new Buffer, ResourceDataState::Final, ResourcePolicy::Manual);
         DebugDrawResourceManager::instance()->set<Mesh>(this->mesh.key(), BoxMesh<dimensions>::mesh(buffer), ResourceDataState::Final, ResourcePolicy::Manual);
diff --git a/src/Physics/ShapedObjectGroup.h b/src/Physics/ShapedObjectGroup.h
index acd5fb96a..1934ef19c 100644
--- a/src/Physics/ShapedObjectGroup.h
+++ b/src/Physics/ShapedObjectGroup.h
@@ -45,7 +45,7 @@ template<std::uint8_t dimensions> class PHYSICS_EXPORT ShapedObjectGroup {
          *
          * Marks the group as dirty.
          */
-        inline constexpr ShapedObjectGroup(): dirty(true) {}
+        inline ShapedObjectGroup(): dirty(true) {}
 
         /**
          * @brief Destructor
diff --git a/src/Shader.cpp b/src/Shader.cpp
index ea4004814..5695b383a 100644
--- a/src/Shader.cpp
+++ b/src/Shader.cpp
@@ -48,7 +48,8 @@ Shader::Shader(Version version, Type type): _type(type), _state(State::Initializ
         case Version::GLES300: addSource("#version 300\n"); break;
         #endif
 
-        default: break;
+        default:
+            CORRADE_ASSERT(false, "Shader::Shader(): unsupported version" << GLint(version), );
     }
 }
 
diff --git a/src/Shaders/FlatShader.cpp b/src/Shaders/FlatShader.cpp
index 69d15c3a0..78ad7a450 100644
--- a/src/Shaders/FlatShader.cpp
+++ b/src/Shaders/FlatShader.cpp
@@ -26,13 +26,13 @@ namespace {
     template<std::uint8_t dimensions> struct ShaderName {};
 
     template<> struct ShaderName<2> {
-        constexpr static const char* Vertex = "FlatShader2D.vert";
-        constexpr static const char* Fragment = "FlatShader2D.frag";
+        constexpr static const char* vertex() { return "FlatShader2D.vert"; }
+        constexpr static const char* fragment() { return "FlatShader2D.frag"; }
     };
 
     template<> struct ShaderName<3> {
-        constexpr static const char* Vertex = "FlatShader3D.vert";
-        constexpr static const char* Fragment = "FlatShader3D.frag";
+        constexpr static const char* vertex() { return "FlatShader3D.vert"; }
+        constexpr static const char* fragment() { return "FlatShader3D.frag"; }
     };
 }
 
@@ -40,19 +40,19 @@ template<std::uint8_t dimensions> FlatShader<dimensions>::FlatShader() {
     Corrade::Utility::Resource rs("MagnumShaders");
 
     #ifndef MAGNUM_TARGET_GLES
-    Version v = Context::current()->supportedVersion({/*Version::GL320, */Version::GL210});
+    Version v = Context::current()->supportedVersion({Version::GL320, Version::GL210});
     #else
     Version v = Context::current()->supportedVersion({Version::GLES300, Version::GLES200});
     #endif
 
     Shader vertexShader(v, Shader::Type::Vertex);
     vertexShader.addSource(rs.get("compatibility.glsl"));
-    vertexShader.addSource(rs.get(ShaderName<dimensions>::Vertex));
+    vertexShader.addSource(rs.get(ShaderName<dimensions>::vertex()));
     attachShader(vertexShader);
 
     Shader fragmentShader(v, Shader::Type::Fragment);
     fragmentShader.addSource(rs.get("compatibility.glsl"));
-    fragmentShader.addSource(rs.get(ShaderName<dimensions>::Fragment));
+    fragmentShader.addSource(rs.get(ShaderName<dimensions>::fragment()));
     attachShader(fragmentShader);
 
     #ifndef MAGNUM_TARGET_GLES