Got rid of (most of) all of the warnings.

include/EffectEntry.h

@@ -4,7 +4,7 @@
 #include "Effect.h"
 
 typedef struct {
-  char* name;
+  const char* name;
   Effect* effect;
 } EffectEntry;
 

include/effect_animation.h

@@ -11,7 +11,7 @@ class AnimationEffect : public Effect {
     int frame = 0;
     CRGB background_color;
     int xOffset, yOffset;
-    long frameSince = 0;
+    unsigned long frameSince = 0;
   public:
     AnimationEffect(AnimationData *anim);
     AnimationEffect(AnimationData *anim, CRGB background_color);

include/effect_cycle.h

@@ -7,7 +7,7 @@
 class CycleEffect : public Effect {
   private:
     Effect* effect;
-    long effectSince = 0;
+    unsigned long effectSince = 0;
   public:
     void changeEffect();
 

include/effect_matrix.h

@@ -11,9 +11,9 @@ class MatrixEffectColumn {
     int x, y;
     int length;
     Window* window;
-    int speed;
+    uint16_t speed;
     boolean running;
-    long last_move = 0;
+    unsigned long last_move = 0;
   public:
     MatrixEffectColumn();
     MatrixEffectColumn(Window* win, int xPos);