diff --git a/ideas/spells.ods b/ideas/spells.ods
index 132a5f4e65c63e35369413d53a23fc7798b5b8e2..14de6dc1e8839e7a0c79d10d90234e73662b9f59 100644
Binary files a/ideas/spells.ods and b/ideas/spells.ods differ
diff --git a/src/core_lua.c b/src/core_lua.c
index efd353b3a7e7eb712961cb1e40d4c286e455d75f..fe776536bda3d2514cd5f78228067fe1c16bcb75 100644
--- a/src/core_lua.c
+++ b/src/core_lua.c
@@ -37,7 +37,7 @@
 #include "useshader.h"
 #include <math.h>
 #include <time.h>
-//#include <png.h>
+#include <png.h>
 
 extern SDL_Window *window;
 
@@ -2021,7 +2021,6 @@ static int sdl_set_gamma(lua_State *L)
 	return 1;
 }
 
-/*
 static void png_write_data_fn(png_structp png_ptr, png_bytep data, png_size_t length)
 {
 	luaL_Buffer *B = (luaL_Buffer*)png_get_io_ptr(png_ptr);
@@ -2034,11 +2033,8 @@ static void png_output_flush_fn(png_structp png_ptr)
 #ifndef png_infopp_NULL
 #define png_infopp_NULL (png_infopp)NULL
 #endif
-*/
 static int sdl_get_png_screenshot(lua_State *L)
 {
-	return 0;
-	/*
 	unsigned int x = luaL_checknumber(L, 1);
 	unsigned int y = luaL_checknumber(L, 2);
 	unsigned long width = luaL_checknumber(L, 3);
@@ -2116,7 +2112,7 @@ static int sdl_get_png_screenshot(lua_State *L)
 
 	luaL_pushresult(&B);
 
-	return 1;*/
+	return 1;
 }
 
 static const struct luaL_reg displaylib[] =