1 files changed, 3 insertions, 1 deletions

diff --git a/gfx-iso/include/isogfx/app.h b/gfx-iso/include/isogfx/app.h
index 769af6d..fe60d04 100644
--- a/gfx-iso/include/isogfx/app.h
+++ b/gfx-iso/include/isogfx/app.h
@@ -4,13 +4,15 @@
 
 #include <stdbool.h>
 
+// TODO: Define an isogfx-gl backend library. Remove all these callbacks.
+
 typedef struct IsoGfx    IsoGfx;
 typedef struct IsoGfxApp IsoGfxApp;
 
 typedef struct IsoGfxAppState IsoGfxAppState;
 
 typedef struct IsoGfxApp {
-  int             pixel_scale; // 0 or 1 for 1:1 scale.
+  int             pixel_scale; // Use 0 or 1 for 1:1 scaling.
   IsoGfxAppState* state;
 
   bool (*init)(IsoGfxAppState*, IsoGfx*, int argc, const char** argv);