Some documentation in pokedex_screen

include/pokedex_screen.h

@@ -1,6 +1,16 @@
 #ifndef GUARD_POKEDEX_SCREEN_H
 #define GUARD_POKEDEX_SCREEN_H
 
+#define DEX_CATEGORY_GRASSLAND     0
+#define DEX_CATEGORY_FOREST        1
+#define DEX_CATEGORY_WATERS_EDGE   2
+#define DEX_CATEGORY_SEA           3
+#define DEX_CATEGORY_CAVE          4
+#define DEX_CATEGORY_MOUNTAIN      5
+#define DEX_CATEGORY_ROUGH_TERRAIN 6
+#define DEX_CATEGORY_URBAN         7
+#define DEX_CATEGORY_RARE          8
+
 void CB2_OpenPokedexFromStartMenu(void);
 s8 sub_8104AB0(u16 nationalDexNo, u8 caseId, bool8 indexIsSpecies);