fix typos and casting

src/application/Data/rom.cc

@@ -119,7 +119,7 @@ uchar* ROM::LoadGraphicsSheet(int offset) {
   auto tilesheet_position = Core::Constants::gfx_1_pointer +
                             (offset * Core::Constants::UncompressedSheetSize);
   auto data = Decompress(tilesheet_position);
-  return SNES3bppTo8bppSheet(data);
+  return SNES3bppTo8bppSheet((uchar*)data);
 }
 
 // char *buffer = new char[0x800] AKA sheet_buffer_in 3bpp

src/application/Editor/editor.cc

@@ -323,7 +323,7 @@ void Editor::DrawProjectEditor() {
       BASIC_BUTTON("Retrieve Graphics") {
         if (rom_.isLoaded()) {
           if (!loaded_image) {
-            image_data = rom_.LoadGraphicsSheet(current_set.pc_tiles_location_);
+            image_data = rom_.LoadGraphicsSheet(current_set_.pc_tiles_location_);
             loaded_image = true;
           } else {
             // TODO: build the sdl surface from the tilesheet data