diff --git a/src/gradient.cpp b/src/gradient.cpp
index 8e6944f3..d077bc0c 100644
--- a/src/gradient.cpp
+++ b/src/gradient.cpp
@@ -60,12 +60,12 @@ void Gradient::TickDraw(float seconds)
 {
     Entity::TickDraw(seconds);
 
-    float const vertex[] = {   0.0f,   0.0f, 0.0f,
-                             640.0f,   0.0f, 0.0f,
-                               0.0f, 480.0f, 0.0f,
-                             640.0f, 480.0f, 0.0f,
-                               0.0f, 480.0f, 0.0f,
-                             640.0f,   0.0f, 0.0f, };
+    float const vertex[] = { m_bbox[0].x, m_bbox[0].y, 0.0f,
+                             m_bbox[1].x, m_bbox[0].y, 0.0f,
+                             m_bbox[0].x, m_bbox[1].y, 0.0f,
+                             m_bbox[1].x, m_bbox[1].y, 0.0f,
+                             m_bbox[0].x, m_bbox[1].y, 0.0f,
+                             m_bbox[1].x, m_bbox[0].y, 0.0f, };
 
     float const color[] = { 0.73f, 0.85f, 0.85f, 1.0f,
                             0.73f, 0.85f, 0.85f, 1.0f,
diff --git a/src/input/input.cpp b/src/input/input.cpp
index a5c29b55..2f482d75 100644
--- a/src/input/input.cpp
+++ b/src/input/input.cpp
@@ -403,6 +403,8 @@ void Input::SetMousePos(ivec2 coord)
 
     WorldEntity *top = NULL;
 
+    /* Find the top “widget” amongst all entities that match the
+     * mouse coordinates */
     for (int n = 0; n < data->nentities; n++)
     {
         if (coord.x < data->entities[n]->m_bbox[0].x
diff --git a/src/platform/android/androidapp.cpp b/src/platform/android/androidapp.cpp
index 0d701a16..8021b0c5 100644
--- a/src/platform/android/androidapp.cpp
+++ b/src/platform/android/androidapp.cpp
@@ -25,11 +25,8 @@ using namespace lol;
 
 /* One of these wrappers will be overridden by the user's version */
 void lol_android_main(void) __attribute__((weak));
-void lol_android_main(void) {}
 void lol_android_main(int argc, char **argv) __attribute__((weak));
-void lol_android_main(int argc, char **argv) {}
 void lol_android_main(int argc, char **argv, char **envp) __attribute__((weak));
-void lol_android_main(int argc, char **argv, char **envp) {}
 
 namespace lol
 {
@@ -87,6 +84,7 @@ AndroidApp::~AndroidApp()
 extern "C" jint
 JNI_OnLoad(JavaVM* vm, void* reserved)
 {
+    Log::Info("Java layer loading library, vm=0x%08lx", (long)(intptr_t)vm);
     g_vm = vm;
     return JNI_VERSION_1_4;
 }
@@ -94,7 +92,7 @@ JNI_OnLoad(JavaVM* vm, void* reserved)
 extern "C" void
 Java_org_zoy_LolEngine_LolActivity_nativeInit(JNIEnv* env, jobject thiz)
 {
-    Log::Info("Java layer initialising activity");
+    Log::Info("Java layer initialising activity 0x%08lx", (long)thiz);
     env->NewGlobalRef(thiz); /* FIXME: never released! */
     g_activity = thiz;
 }
@@ -158,5 +156,22 @@ Java_org_zoy_LolEngine_LolRenderer_nativeRender(JNIEnv* env)
     Ticker::TickDraw();
 }
 
+/*
+ * Fake main() wrappers that let us call the user’s main() from within
+ * a separate thread.
+ */
+void lol_android_main(void) {}
+void lol_android_main(int argc, char **argv)
+{
+    (void)argc;
+    (void)argv;
+}
+void lol_android_main(int argc, char **argv, char **envp)
+{
+    (void)argc;
+    (void)argv;
+    (void)envp;
+}
+
 #endif /* __ANDROID__ */