diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9d47e203..c660273d 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -36,12 +36,35 @@ set(
 
 # Asar Assembly ---------------------------------------------------------------
 add_subdirectory(lib/asar/src)
-set(ASAR_GEN_EXE  OFF)
-set(ASAR_GEN_DLL  ON)
-set(ASAR_GEN_LIB OFF)
+get_target_property(ASAR_INCLUDE_DIR asar-static INCLUDE_DIRECTORIES)
+target_include_directories(asar-static PRIVATE ${ASAR_INCLUDE_DIR})
+set(ASAR_GEN_EXE OFF)
+set(ASAR_GEN_DLL ON)
+set(ASAR_GEN_LIB ON)
 set(ASAR_GEN_EXE_TEST OFF)
 set(ASAR_GEN_DLL_TEST OFF)
 
+set(ASAR_STATIC_SRC
+  "lib/asar/src/asar/interface-lib.cpp"
+  "lib/asar/src/asar/addr2line.cpp"
+  "lib/asar/src/asar/arch-65816.cpp"
+  "lib/asar/src/asar/arch-spc700.cpp"
+  "lib/asar/src/asar/arch-superfx.cpp"
+  "lib/asar/src/asar/assembleblock.cpp"
+  "lib/asar/src/asar/crc32.cpp"
+  "lib/asar/src/asar/libcon.cpp"
+  "lib/asar/src/asar/libsmw.cpp"
+  "lib/asar/src/asar/libstr.cpp"
+  "lib/asar/src/asar/macro.cpp"
+  "lib/asar/src/asar/main.cpp"
+  "lib/asar/src/asar/asar_math.cpp"
+  "lib/asar/src/asar/virtualfile.cpp"
+  "lib/asar/src/asar/warnings.cpp"
+  "lib/asar/src/asar/errors.cpp"
+  "lib/asar/src/asar/platform/file-helpers.cpp"
+  "lib/asar/src/asar/platform/linux/file-helpers-linux.cpp"
+)
+
 # yaze source files -----------------------------------------------------------
 set(
   YAZE_APP_CORE_SRC
@@ -86,6 +109,7 @@ set(
   gui/input.cc
   gui/style.cc
   gui/widgets.cc
+  gui/color.cc
 )
 
 add_executable(
@@ -99,7 +123,7 @@ add_executable(
   ${YAZE_APP_ZELDA3_SRC}
   ${YAZE_GUI_SRC}
   ${IMGUI_SRC}
-  lib/asar/src/asar-dll-bindings/c/asardll.c
+  ${ASAR_STATIC_SRC}
 )
 
 target_include_directories(
@@ -111,7 +135,7 @@ target_include_directories(
   ${PNG_INCLUDE_DIRS}
   ${SDL2_INCLUDE_DIR}
   ${GLEW_INCLUDE_DIRS}
-  lib/asar/src/asar-dll-bindings/c
+  lib/asar/src/
 )
 
 set(SDL_TARGETS SDL2::SDL2)
@@ -130,7 +154,10 @@ target_link_libraries(
   ${OPENGL_LIBRARIES}
   ${CMAKE_DL_LIBS}
   ImGui
+  asar-static
 )
+target_compile_definitions(yaze PRIVATE "linux")
+target_compile_definitions(yaze PRIVATE "stricmp=strcasecmp")
 
 set_target_properties(yaze
     PROPERTIES
@@ -155,7 +182,6 @@ add_executable(
   ${YAZE_APP_ZELDA3_SRC}
   ${YAZE_GUI_SRC}
   ${IMGUI_SRC}
-  lib/asar/src/asar-dll-bindings/c/asardll.c
 )
 
 target_include_directories(
@@ -167,7 +193,7 @@ target_include_directories(
   ${PNG_INCLUDE_DIRS}
   ${SDL2_INCLUDE_DIR}
   ${GLEW_INCLUDE_DIRS}
-  lib/asar/src/asar-dll-bindings/c
+  ${ASAR_STATIC_SRC}
 )
 
 target_link_libraries(
@@ -179,6 +205,7 @@ target_link_libraries(
   ${OPENGL_LIBRARIES}
   ${CMAKE_DL_LIBS}
   delta-service
+  asar-static
   ImGui
 )
 
diff --git a/src/app/asm/script.cc b/src/app/asm/script.cc
index 1972e958..ff0cf404 100644
--- a/src/app/asm/script.cc
+++ b/src/app/asm/script.cc
@@ -1,6 +1,6 @@
 #include "script.h"
 
-#include <asardll.h>
+#include <asar/interface-lib.h>
 
 #include <array>
 #include <cstdint>
@@ -20,49 +20,13 @@ namespace yaze {
 namespace app {
 namespace snes_asm {
 
-std::string GenerateBytePool(char mosaic_tiles[core::kNumOverworldMaps]) {
-  std::string to_return = "";
-  int column = 0;
-  for (int i = 0; i < core::kNumOverworldMaps; ++i) {
-    std::string to_add = "";
-
-    // if start of line, define byte
-    if (i == 0 || i % 8 == 0) {
-      to_add += "  db ";
-    }
-
-    // set byte
-    to_add += "$00";
-    if (mosaic_tiles[i] > 0) {
-      if (i == 0 || i % 8 == 0) {
-        to_add = "  db $01";
-      } else {
-        to_add = "$01";
-      }
-    }
-
-    // newline or comma separated
-    if (column == 7) {
-      column = 0;
-      to_add += " \n";
-    } else {
-      column++;
-      to_add += ", ";
-    }
-
-    to_return += to_add;
-  }
-  return to_return;
-}
-
 absl::Status Script::ApplyPatchToROM(ROM &rom) {
   if (patch_contents_.empty() || patch_filename_.empty()) {
     return absl::InvalidArgumentError("No patch loaded!");
   }
-
-  char *data = (char *)rom.data();
-  int size = rom.GetSize();
   int count = 0;
+  auto data = (char *)rom.data();
+  int size = rom.size();
   if (!asar_patch(patch_filename_.c_str(), data, patch_size_, &size)) {
     auto asar_error = asar_geterrors(&count);
     auto full_error = asar_error->fullerrdata;
@@ -71,43 +35,37 @@ absl::Status Script::ApplyPatchToROM(ROM &rom) {
   return absl::OkStatus();
 }
 
-absl::Status Script::GenerateMosaicChangeAssembly(
+absl::Status Script::PatchOverworldMosaic(
     ROM &rom, char mosaic_tiles[core::kNumOverworldMaps], int routine_offset,
     int hook_offset) {
+  for (int i = 0; i < core::kNumOverworldMaps; i++) {
+    if (mosaic_tiles[i]) {
+      rom[core::overworldCustomMosaicArray + i] = 0x01;
+    } else {
+      rom[core::overworldCustomMosaicArray + i] = 0x00;
+    }
+  }
   std::fstream file("assets/asm/mosaic_change.asm",
                     std::ios::out | std::ios::in);
   if (!file.is_open()) {
     return absl::InvalidArgumentError(
-        "Couldn't open mosaic change template file");
+        "Unable to open mosaic change assembly source");
   }
-
   std::stringstream assembly;
   assembly << file.rdbuf();
   file.close();
-
   auto assembly_string = assembly.str();
-
   if (!core::StringReplace(assembly_string, "<HOOK>", kMosaicChangeOffset)) {
     return absl::InternalError(
         "Mosaic template did not have proper `<HOOK>` to replace.");
   }
-
   if (!core::StringReplace(
           assembly_string, "<EXPANDED_SPACE>",
           absl::StrFormat("$%x", routine_offset + kSNESToPCOffset))) {
     return absl::InternalError(
         "Mosaic template did not have proper `<EXPANDED_SPACE>` to replace.");
   }
-
-  assembly_string += GenerateBytePool(mosaic_tiles);
   patch_contents_ = assembly_string;
-  patch_filename_ = "assets/asm/mosaic_change_generated.asm";
-  std::ofstream new_file(patch_filename_, std::ios::out);
-  if (new_file.is_open()) {
-    new_file.write(assembly_string.c_str(), assembly_string.size());
-    new_file.close();
-  }
-
   return ApplyPatchToROM(rom);
 }
 
diff --git a/src/app/asm/script.h b/src/app/asm/script.h
index ede1ba36..15a2b5cf 100644
--- a/src/app/asm/script.h
+++ b/src/app/asm/script.h
@@ -1,7 +1,7 @@
 #ifndef YAZE_APP_ASM_SCRIPT_H
 #define YAZE_APP_ASM_SCRIPT_H
 
-#include <asardll.h>
+#include <asar/interface-lib.h>
 
 #include <array>
 #include <cstdint>
@@ -27,17 +27,15 @@ class ScriptTemplate {
  public:
   virtual ~ScriptTemplate() = default;
   virtual absl::Status ApplyPatchToROM(ROM& rom) = 0;
-  virtual absl::Status GenerateMosaicChangeAssembly(
+  virtual absl::Status PatchOverworldMosaic(
       ROM& rom, char mosaic_tiles[core::kNumOverworldMaps], int routine_offset,
       int hook_offset = 0) = 0;
 };
 
 class Script : public ScriptTemplate {
  public:
-  Script() { asar_init_with_dll_path("assets/libasar.dll"); }
-
   absl::Status ApplyPatchToROM(ROM& rom) override;
-  absl::Status GenerateMosaicChangeAssembly(
+  absl::Status PatchOverworldMosaic(
       ROM& rom, char mosaic_tiles[core::kNumOverworldMaps], int routine_offset,
       int hook_offset = 0) override;
 
diff --git a/src/app/core/constants.h b/src/app/core/constants.h
index aeff07c7..94f957ba 100644
--- a/src/app/core/constants.h
+++ b/src/app/core/constants.h
@@ -482,7 +482,7 @@ constexpr int customAreaSpecificBGPalette =
 constexpr int customAreaSpecificBGASM = 0x140150;
 constexpr int customAreaSpecificBGEnabled =
     0x140140;  // 1 byte, not 0 if enabled
-
+constexpr int overworldCustomMosaicArray = 0x1301F0;
 // ============================================================================
 // Dungeon Map Related Variables
 // ============================================================================
diff --git a/src/app/delta/viewer.cc b/src/app/delta/viewer.cc
index b1466560..c3848ebe 100644
--- a/src/app/delta/viewer.cc
+++ b/src/app/delta/viewer.cc
@@ -127,7 +127,7 @@ void Viewer::DrawViewMenu() {
 
   if (show_memory_editor) {
     static MemoryEditor mem_edit;
-    mem_edit.DrawWindow("Memory Editor", (void*)&rom_, rom_.GetSize());
+    mem_edit.DrawWindow("Memory Editor", (void*)&rom_, rom_.size());
   }
 
   if (show_imgui_demo) {
diff --git a/src/app/editor/master_editor.cc b/src/app/editor/master_editor.cc
index 59a8a363..14dbcb4f 100644
--- a/src/app/editor/master_editor.cc
+++ b/src/app/editor/master_editor.cc
@@ -138,7 +138,7 @@ void MasterEditor::DrawInfoPopup() {
   if (ImGui::BeginPopupModal("ROM Information", nullptr,
                              ImGuiWindowFlags_AlwaysAutoResize)) {
     ImGui::Text("Title: %s", rom_.GetTitle());
-    ImGui::Text("ROM Size: %ld", rom_.GetSize());
+    ImGui::Text("ROM Size: %ld", rom_.size());
 
     if (ImGui::Button("Close", ImVec2(200, 0))) {
       rom_info_ = false;
@@ -216,7 +216,7 @@ void MasterEditor::DrawViewMenu() {
 
   if (show_memory_editor) {
     static MemoryEditor mem_edit;
-    mem_edit.DrawWindow("Memory Editor", (void *)&rom_, rom_.GetSize());
+    mem_edit.DrawWindow("Memory Editor", (void *)&rom_, rom_.size());
   }
 
   if (show_imgui_demo) {
diff --git a/src/app/editor/overworld_editor.cc b/src/app/editor/overworld_editor.cc
index 1477176e..3e606b76 100644
--- a/src/app/editor/overworld_editor.cc
+++ b/src/app/editor/overworld_editor.cc
@@ -107,7 +107,7 @@ absl::Status OverworldEditor::DrawToolset() {
     BUTTON_COLUMN(ICON_MD_ZOOM_OUT)             // Zoom Out
     BUTTON_COLUMN(ICON_MD_ZOOM_IN)              // Zoom In
     TEXT_COLUMN(ICON_MD_MORE_VERT)              // Separator
-    BUTTON_COLUMN(ICON_MD_DRAW);                // Draw Tile
+    BUTTON_COLUMN(ICON_MD_DRAW)                 // Draw Tile
     BUTTON_COLUMN(ICON_MD_DOOR_FRONT)           // Entrances
     BUTTON_COLUMN(ICON_MD_DOOR_BACK)            // Exits
     BUTTON_COLUMN(ICON_MD_GRASS)                // Items
diff --git a/src/app/editor/screen_editor.cc b/src/app/editor/screen_editor.cc
index 34505b2c..d81b6262 100644
--- a/src/app/editor/screen_editor.cc
+++ b/src/app/editor/screen_editor.cc
@@ -17,6 +17,7 @@
 #include "app/gfx/bitmap.h"
 #include "app/gfx/snes_tile.h"
 #include "gui/canvas.h"
+#include "gui/icons.h"
 #include "gui/input.h"
 
 namespace yaze {
@@ -63,37 +64,40 @@ void ScreenEditor::DrawInventoryMenuEditor() {
   TAB_ITEM("Inventory Menu")
 
   static bool create = false;
-  if (!create) {
-    PRINT_IF_ERROR(rom_.LoadAllGraphicsData())
-    all_gfx_ = rom_.GetGraphicsBuffer();
-    inventory_.Create(all_gfx_);
+  if (!create && rom_.isLoaded()) {
+    inventory_.Create();
+    palette_ =inventory_.Palette();
     create = true;
   }
 
-  if (ImGui::BeginTable("InventoryScreen", 2, ImGuiTableFlags_Resizable)) {
+  DrawInventoryToolset();
+
+  if (ImGui::BeginTable("InventoryScreen", 3, ImGuiTableFlags_Resizable)) {
     ImGui::TableSetupColumn("Canvas");
     ImGui::TableSetupColumn("Tiles");
+    ImGui::TableSetupColumn("Palette");
     ImGui::TableHeadersRow();
 
     ImGui::TableNextColumn();
     screen_canvas_.DrawBackground();
     screen_canvas_.DrawContextMenu();
     screen_canvas_.DrawBitmap(inventory_.Bitmap(), 2, create);
-    screen_canvas_.DrawGrid();
+    screen_canvas_.DrawGrid(32.0f);
     screen_canvas_.DrawOverlay();
 
     ImGui::TableNextColumn();
-    tilesheet_canvas_.DrawBackground(ImVec2(128 * 2 + 2, 192 * 2 + 2));
+    tilesheet_canvas_.DrawBackground(ImVec2(128 * 2 + 2, (192 * 2) + 4));
     tilesheet_canvas_.DrawContextMenu();
     tilesheet_canvas_.DrawBitmap(inventory_.Tilesheet(), 2, create);
     tilesheet_canvas_.DrawGrid(16.0f);
     tilesheet_canvas_.DrawOverlay();
 
+    ImGui::TableNextColumn();
+    gui::DisplayPalette(palette_, create);
+
     ImGui::EndTable();
   }
-
-  ImGui::SameLine();
-
+  ImGui::Separator();  
   END_TAB_ITEM()
 }
 
@@ -138,7 +142,7 @@ void ScreenEditor::DrawMosaicEditor() {
   gui::InputHex("Routine Location", &overworldCustomMosaicASM);
 
   if (ImGui::Button("Generate Mosaic Assembly")) {
-    auto mosaic = mosaic_script_.GenerateMosaicChangeAssembly(
+    auto mosaic = mosaic_script_.PatchOverworldMosaic(
         rom_, mosaic_tiles_, overworldCustomMosaicASM);
     if (!mosaic.ok()) {
       std::cout << mosaic;
@@ -168,6 +172,30 @@ void ScreenEditor::DrawToolset() {
   ImGui::Checkbox("Draw BG3", &drawing_bg3);
 }
 
+void ScreenEditor::DrawInventoryToolset() {
+  if (ImGui::BeginTable("InventoryToolset", 8, ImGuiTableFlags_SizingFixedFit, ImVec2(0, 0))) {
+    ImGui::TableSetupColumn("#drawTool");
+    ImGui::TableSetupColumn("#sep1");
+    ImGui::TableSetupColumn("#zoomOut");
+    ImGui::TableSetupColumn("#zoomIN");
+    ImGui::TableSetupColumn("#sep2");
+    ImGui::TableSetupColumn("#bg2Tool");
+    ImGui::TableSetupColumn("#bg3Tool");
+    ImGui::TableSetupColumn("#itemTool");
+
+    BUTTON_COLUMN(ICON_MD_UNDO)           
+    BUTTON_COLUMN(ICON_MD_REDO)  
+    TEXT_COLUMN(ICON_MD_MORE_VERT) 
+    BUTTON_COLUMN(ICON_MD_ZOOM_OUT)         
+    BUTTON_COLUMN(ICON_MD_ZOOM_IN)
+    TEXT_COLUMN(ICON_MD_MORE_VERT)    
+    BUTTON_COLUMN(ICON_MD_DRAW)
+    BUTTON_COLUMN(ICON_MD_BUILD)   
+
+    ImGui::EndTable();
+  }
+}
+
 }  // namespace editor
 }  // namespace app
 }  // namespace yaze
\ No newline at end of file
diff --git a/src/app/editor/screen_editor.h b/src/app/editor/screen_editor.h
index 46b0fbfa..c6635dec 100644
--- a/src/app/editor/screen_editor.h
+++ b/src/app/editor/screen_editor.h
@@ -9,9 +9,12 @@
 #include "app/core/constants.h"
 #include "app/gfx/bitmap.h"
 #include "app/gfx/snes_tile.h"
+#include "app/gfx/snes_palette.h"
 #include "app/rom.h"
 #include "app/zelda3/inventory.h"
 #include "gui/canvas.h"
+#include "gui/icons.h"
+#include "gui/color.h"
 
 namespace yaze {
 namespace app {
@@ -19,7 +22,6 @@ namespace editor {
 
 using MosaicArray = std::array<int, core::kNumOverworldMaps>;
 static int overworldCustomMosaicASM = 0x1301D0;
-static int overworldCustomMosaicArray = 0x1301F0;
 
 class ScreenEditor {
  public:
@@ -39,6 +41,7 @@ class ScreenEditor {
   void DrawInventoryMenuEditor();
 
   void DrawToolset();
+  void DrawInventoryToolset();
   void DrawWorldGrid(int world, int h = 8, int w = 8);
 
   char mosaic_tiles_[core::kNumOverworldMaps];
@@ -46,6 +49,7 @@ class ScreenEditor {
   ROM rom_;
   Bytes all_gfx_;
   zelda3::Inventory inventory_;
+  gfx::SNESPalette palette_;
   snes_asm::Script mosaic_script_;
   gui::Canvas screen_canvas_;
   gui::Canvas tilesheet_canvas_;
diff --git a/src/app/rom.cc b/src/app/rom.cc
index 067add26..139f37ab 100644
--- a/src/app/rom.cc
+++ b/src/app/rom.cc
@@ -302,7 +302,7 @@ absl::Status ValidateCompressionResult(
     RETURN_IF_ERROR(temp_rom.LoadFromBytes(
         CreateCompressionString(compressed_chain_start->next, mode)))
     ASSIGN_OR_RETURN(auto decomp_data,
-                     temp_rom.Decompress(0, temp_rom.GetSize()))
+                     temp_rom.Decompress(0, temp_rom.size()))
     if (!std::equal(decomp_data.begin() + start, decomp_data.end(),
                     temp_rom.begin())) {
       return absl::InternalError(absl::StrFormat(
@@ -352,7 +352,7 @@ int GetGraphicsAddress(const uchar* data, uint8_t offset) {
   return core::SnesToPc(snes_addr);
 }
 
-Bytes SNES3bppTo8bppSheet(Bytes sheet, int bpp) {
+Bytes SnesTo8bppSheet(Bytes sheet, int bpp) {
   int xx = 0;  // positions where we are at on the sheet
   int yy = 0;
   int pos = 0;
@@ -368,12 +368,9 @@ Bytes SNES3bppTo8bppSheet(Bytes sheet, int bpp) {
   }
   Bytes sheet_buffer_out(buffer_size);
 
-  // for each tiles, 16 per line
-  for (int i = 0; i < num_tiles; i++) {
-    // for each line
-    for (int y = 0; y < 8; y++) {
-      //[0] + [1] + [16]
-      for (int x = 0; x < 8; x++) {
+  for (int i = 0; i < num_tiles; i++) {  // for each tiles, 16 per line
+    for (int y = 0; y < 8; y++) {        // for each line
+      for (int x = 0; x < 8; x++) {      //[0] + [1] + [16]
         auto b1 = ((sheet[(y * 2) + (bpp * pos)] & (kGraphicsBitmap[x])));
         auto b2 = (sheet[((y * 2) + (bpp * pos)) + 1] & (kGraphicsBitmap[x]));
         auto b3 = (sheet[(16 + y) + (bpp * pos)] & (kGraphicsBitmap[x]));
@@ -457,7 +454,6 @@ absl::StatusOr<Bytes> ROM::Compress(const int start, const int length, int mode,
         comp_accumulator = 0;
       }
     } else {
-      // Anything is better than directly copying bytes...
       lc_lz2::CompressionCommandAlternative(
           rom_data_.data(), compressed_chain, cmd_size, cmd_args, src_data_pos,
           comp_accumulator, cmd_with_max, max_win);
@@ -474,8 +470,8 @@ absl::StatusOr<Bytes> ROM::Compress(const int start, const int length, int mode,
     }
   }
 
-  lc_lz2::MergeCopy(
-      compressed_chain_start->next);  // Skipping compression chain header
+  // Skipping compression chain header
+  lc_lz2::MergeCopy(compressed_chain_start->next);
   lc_lz2::PrintCompressionChain(compressed_chain_start);
   return lc_lz2::CreateCompressionString(compressed_chain_start->next, mode);
 }
@@ -515,10 +511,8 @@ absl::StatusOr<Bytes> ROM::Decompress(int offset, int size, int mode) {
         offset += length;
         break;
       case kCommandByteFill:
-        for (int i = 0; i < length; i++) {
-          buffer[buffer_pos] = rom_data_[offset];
-          buffer_pos++;
-        }
+        memset(buffer.data() + buffer_pos, (int)(rom_data_[offset]), length);
+        buffer_pos += length;
         offset += 1;  // Advances 1 byte in the ROM
         break;
       case kCommandWordFill: {
@@ -543,35 +537,23 @@ absl::StatusOr<Bytes> ROM::Decompress(int offset, int size, int mode) {
         ushort s1 = ((rom_data_[offset + 1] & kSnesByteMax) << 8);
         ushort s2 = ((rom_data_[offset] & kSnesByteMax));
         int addr = (s1 | s2);
-
         if (mode == kNintendoMode1) {  // Reversed byte order for overworld maps
-          // addr = (s2 | s1);
           addr = (rom_data_[offset + 1] & kSnesByteMax) |
                  ((rom_data_[offset] & kSnesByteMax) << 8);
-          if (addr > offset) {
-            return absl::InternalError(absl::StrFormat(
-                "Decompress: Offset for command copy exceeds current position "
-                "(Offset : %#04x | Pos : %#06x)\n",
-                addr, offset));
-          }
-
-          if (buffer_pos + length >= size) {
-            size *= 2;
-            buffer.resize(size);
-          }
-
-          memcpy(buffer.data() + buffer_pos, buffer.data() + addr, length);
-          buffer_pos += length;
-          offset += 2;
-          break;
         }
-
-        for (int i = 0; i < length; i++) {
-          buffer[buffer_pos] = buffer[addr + i];
-          buffer_pos++;
+        if (addr > offset) {
+          return absl::InternalError(absl::StrFormat(
+              "Decompress: Offset for command copy exceeds current position "
+              "(Offset : %#04x | Pos : %#06x)\n",
+              addr, offset));
         }
-        offset += 2;  // Advance 2 bytes in the ROM
-
+        if (buffer_pos + length >= size) {
+          size *= 2;
+          buffer.resize(size);
+        }
+        memcpy(buffer.data() + buffer_pos, buffer.data() + addr, length);
+        buffer_pos += length;
+        offset += 2;
       } break;
       default: {
         std::cout << absl::StrFormat(
@@ -598,12 +580,12 @@ absl::StatusOr<Bytes> ROM::Load2bppGraphics() {
   Bytes sheet;
   const uint8_t sheets[] = {113, 114, 218, 219, 220, 221};
 
-  for (int i = 0; i < 6; i++) {
-    auto offset = GetGraphicsAddress(rom_data_.data(), sheets[i]);
+  for (const auto& sheet_id : sheets) {
+    auto offset = GetGraphicsAddress(rom_data_.data(), sheet_id);
     ASSIGN_OR_RETURN(auto decomp_sheet, Decompress(offset))
-    auto converted_sheet = SNES3bppTo8bppSheet(decomp_sheet, 2);
-    for (int j = 0; j < converted_sheet.size(); ++j) {
-      sheet.push_back(converted_sheet.at(j));
+    auto converted_sheet = SnesTo8bppSheet(decomp_sheet, 2);
+    for (const auto& each_pixel : converted_sheet) {
+      sheet.push_back(each_pixel);
     }
   }
   return sheet;
@@ -627,8 +609,6 @@ absl::Status ROM::LoadAllGraphicsData() {
       }
       bpp3 = true;
     } else if (i == 113 || i == 114 || i >= 218) {
-      // auto offset = GetGraphicsAddress(rom_data_.data(), i);
-      // ASSIGN_OR_RETURN(sheet, Decompress(offset))
       bpp3 = false;
     } else {
       auto offset = GetGraphicsAddress(rom_data_.data(), i);
@@ -637,7 +617,7 @@ absl::Status ROM::LoadAllGraphicsData() {
     }
 
     if (bpp3) {
-      auto converted_sheet = SNES3bppTo8bppSheet(sheet, 3);
+      auto converted_sheet = SnesTo8bppSheet(sheet, 3);
       graphics_bin_[i] =
           gfx::Bitmap(core::kTilesheetWidth, core::kTilesheetHeight,
                       core::kTilesheetDepth, converted_sheet.data(), 0x1000);
@@ -647,15 +627,8 @@ absl::Status ROM::LoadAllGraphicsData() {
         graphics_buffer_.push_back(graphics_bin_.at(i).GetByte(j));
       }
     } else {
-      // auto converted_sheet = SNES3bppTo8bppSheet(sheet, 2);
-      // graphics_bin_[i] =
-      //     gfx::Bitmap(core::kTilesheetWidth, core::kTilesheetHeight,
-      //                 core::kTilesheetDepth, converted_sheet.data(), 0x1000);
-      // graphics_bin_.at(i).CreateTexture(renderer_);
-
       for (int j = 0; j < graphics_bin_.at(0).GetSize(); ++j) {
         graphics_buffer_.push_back(0xFF);
-        // graphics_buffer_.push_back(graphics_bin_.at(i).GetByte(j));
       }
     }
   }
diff --git a/src/app/rom.h b/src/app/rom.h
index a8beaec6..8f753b28 100644
--- a/src/app/rom.h
+++ b/src/app/rom.h
@@ -93,7 +93,6 @@ class ROM {
 
   void RenderBitmap(gfx::Bitmap* bitmap) const;
 
-  auto GetSize() const { return size_; }
   auto GetTitle() const { return title; }
   auto GetGraphicsBin() const { return graphics_bin_; }
   auto GetGraphicsBuffer() const { return graphics_buffer_; }
@@ -105,6 +104,7 @@ class ROM {
   auto begin() { return rom_data_.begin(); }
   auto end() { return rom_data_.end(); }
   auto data() { return rom_data_.data(); }
+  auto size() const { return size_; }
 
   uchar& operator[](int i) {
     if (i > size_) {
diff --git a/src/app/zelda3/inventory.cc b/src/app/zelda3/inventory.cc
index 96093bdc..b69039cc 100644
--- a/src/app/zelda3/inventory.cc
+++ b/src/app/zelda3/inventory.cc
@@ -8,22 +8,18 @@
 namespace yaze {
 namespace app {
 namespace zelda3 {
-void Inventory::Create(Bytes& all_gfx) {
+void Inventory::Create() {
   data_.reserve(256 * 256);
   for (int i = 0; i < 256 * 256; i++) {
     data_.push_back(0xFF);
   }
-  PRINT_IF_ERROR(BuildTileset(all_gfx))
-  //tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kInventoryStart)));
-
-  tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kBowItemPos)));
-  tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kBowItemPos + 0x02)));
-  tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kBowItemPos + 0x04)));
-  tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kBowItemPos + 0x08)));
-  // tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kLampItemPos)));
-  // tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kLampItemPos + 0x02)));
-  // tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kLampItemPos + 0x04)));
-  // tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(kLampItemPos + 0x08)));
+  PRINT_IF_ERROR(BuildTileset())
+  for (int i = 0; i < 0x400; i += 0x08) {
+    tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(i + kBowItemPos)));
+    tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(i + kBowItemPos + 0x02)));
+    tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(i + kBowItemPos + 0x04)));
+    tiles_.push_back(gfx::GetTilesInfo(rom_.toint16(i + kBowItemPos + 0x08)));
+  }
   const int offsets[] = {0x00, 0x08, 0x800, 0x808};
   auto xx = 0;
   auto yy = 0;
@@ -49,15 +45,15 @@ void Inventory::Create(Bytes& all_gfx) {
         int source = ypos + xpos + (x + (y * 0x80));
 
         auto destination = xx + yy + offset + (mx + (my * 0x100));
-        data_[destination] = (tilesheets_[source] & 0x0F);
+        data_[destination] = (test_[source] & 0x0F) + tile.palette_ * 0x08;
       }
     }
 
     if (i == 4) {
       i = 0;
       xx += 0x10;
-      if (xx >= 0x80) {
-        yy += 0x800;
+      if (xx >= 0x100) {
+        yy += 0x1000;
         xx = 0;
       }
     } else {
@@ -65,15 +61,24 @@ void Inventory::Create(Bytes& all_gfx) {
     }
   }
   bitmap_.Create(256, 256, 128, data_);
-  // bitmap_.ApplyPalette(rom_.GetPaletteGroup("hud")[0]);
+  bitmap_.ApplyPalette(palette_);
   rom_.RenderBitmap(&bitmap_);
 }
 
-absl::Status Inventory::BuildTileset(Bytes& all_gfx) {
+absl::Status Inventory::BuildTileset() {
   tilesheets_.reserve(6 * 0x2000);
   for (int i = 0; i < 6 * 0x2000; i++) tilesheets_.push_back(0xFF);
   ASSIGN_OR_RETURN(tilesheets_, rom_.Load2bppGraphics())
-  tilesheets_bmp_.Create(128, 192 + 96 + 48 - 16, 64, tilesheets_);
+  Bytes test;
+  for (int i = 0; i < 0x4000; i++) {
+    test_.push_back(tilesheets_[i]);
+  }
+  for (int i = 0x8000; i < + 0x8000 + 0x2000; i++) {
+    test_.push_back(tilesheets_[i]);
+  }
+  tilesheets_bmp_.Create(128, 0x130, 64, test_);
+  palette_ = rom_.GetPaletteGroup("hud")[0];
+  tilesheets_bmp_.ApplyPalette(palette_);
   rom_.RenderBitmap(&tilesheets_bmp_);
   return absl::OkStatus();
 }
diff --git a/src/app/zelda3/inventory.h b/src/app/zelda3/inventory.h
index ed3fa7d3..4b714f8a 100644
--- a/src/app/zelda3/inventory.h
+++ b/src/app/zelda3/inventory.h
@@ -3,6 +3,7 @@
 
 #include "app/gfx/bitmap.h"
 #include "app/gfx/snes_tile.h"
+#include "app/gfx/snes_palette.h"
 #include "app/rom.h"
 #include "gui/canvas.h"
 
@@ -11,7 +12,6 @@ namespace app {
 namespace zelda3 {
 
 constexpr int kInventoryStart = 0x6564A;
-constexpr int kLampItemPos = 0x6F6F9;
 constexpr int kBowItemPos = 0x6F631;
 
 class Inventory {
@@ -19,11 +19,12 @@ class Inventory {
   void SetupROM(ROM& rom) { rom_ = rom; }
   auto Bitmap() const { return bitmap_; }
   auto Tilesheet() const { return tilesheets_bmp_; }
+  auto Palette() const { return palette_; }
 
-  void Create(Bytes& all_gfx);
+  void Create();
 
  private:
-  absl::Status BuildTileset(Bytes& all_gfx);
+  absl::Status BuildTileset();
 
   ROM rom_;
 
@@ -31,7 +32,9 @@ class Inventory {
   gfx::Bitmap bitmap_;
 
   Bytes tilesheets_;
+  Bytes test_;
   gfx::Bitmap tilesheets_bmp_;
+  gfx::SNESPalette palette_;
 
   gui::Canvas canvas_;
   std::vector<gfx::TileInfo> tiles_;
diff --git a/src/gui/canvas.cc b/src/gui/canvas.cc
index e97f2a25..ccef103a 100644
--- a/src/gui/canvas.cc
+++ b/src/gui/canvas.cc
@@ -64,6 +64,7 @@ void Canvas::DrawContextMenu() {
     ImGui::OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
 
   if (ImGui::BeginPopup("context")) {
+    ImGui::MenuItem("Show Grid", nullptr, &enable_grid_);
     if (ImGui::MenuItem("Reset Position", nullptr, false)) {
       scrolling_.x = 0;
       scrolling_.y = 0;
diff --git a/src/gui/color.cc b/src/gui/color.cc
new file mode 100644
index 00000000..22c836a1
--- /dev/null
+++ b/src/gui/color.cc
@@ -0,0 +1,84 @@
+#include "color.h"
+
+#include <imgui/imgui.h>
+
+#include <cmath>
+#include <string>
+
+#include "app/gfx/bitmap.h"
+#include "app/gfx/snes_palette.h"
+
+namespace yaze {
+namespace gui {
+void DisplayPalette(app::gfx::SNESPalette& palette, bool loaded) {
+  static ImVec4 color = ImVec4(0, 0, 0, 255.f);
+  ImGuiColorEditFlags misc_flags = ImGuiColorEditFlags_AlphaPreview |
+                                   ImGuiColorEditFlags_NoDragDrop |
+                                   ImGuiColorEditFlags_NoOptions;
+
+  // Generate a default palette. The palette will persist and can be edited.
+  static bool init = false;
+  static ImVec4 saved_palette[32] = {};
+  if (loaded && !init) {
+    for (int n = 0; n < palette.size_; n++) {
+      saved_palette[n].x = palette.GetColor(n).rgb.x / 255;
+      saved_palette[n].y = palette.GetColor(n).rgb.y / 255;
+      saved_palette[n].z = palette.GetColor(n).rgb.z / 255;
+      saved_palette[n].w = 255;  // Alpha
+    }
+    init = true;
+  }
+
+  static ImVec4 backup_color;
+  ImGui::Text("Current ==>");
+  ImGui::SameLine();
+  ImGui::Text("Previous");
+
+  ImGui::ColorButton(
+      "##current", color,
+      ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf,
+      ImVec2(60, 40));
+  ImGui::SameLine();
+
+  if (ImGui::ColorButton(
+          "##previous", backup_color,
+          ImGuiColorEditFlags_NoPicker | ImGuiColorEditFlags_AlphaPreviewHalf,
+          ImVec2(60, 40)))
+    color = backup_color;
+  ImGui::Separator();
+
+ImGui::BeginGroup();  // Lock X position
+  ImGui::Text("Palette");
+  for (int n = 0; n < IM_ARRAYSIZE(saved_palette); n++) {
+    ImGui::PushID(n);
+    if ((n % 4) != 0) ImGui::SameLine(0.0f, ImGui::GetStyle().ItemSpacing.y);
+
+    ImGuiColorEditFlags palette_button_flags = ImGuiColorEditFlags_NoAlpha |
+                                               ImGuiColorEditFlags_NoPicker |
+                                               ImGuiColorEditFlags_NoTooltip;
+    if (ImGui::ColorButton("##palette", saved_palette[n], palette_button_flags,
+                           ImVec2(20, 20)))
+      color = ImVec4(saved_palette[n].x, saved_palette[n].y, saved_palette[n].z,
+                     color.w);  // Preserve alpha!
+
+    if (ImGui::BeginDragDropTarget()) {
+      if (const ImGuiPayload* payload =
+              ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_3F))
+        memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 3);
+      if (const ImGuiPayload* payload =
+              ImGui::AcceptDragDropPayload(IMGUI_PAYLOAD_TYPE_COLOR_4F))
+        memcpy((float*)&saved_palette[n], payload->Data, sizeof(float) * 4);
+      ImGui::EndDragDropTarget();
+    }
+
+    ImGui::PopID();
+  }
+  ImGui::EndGroup();
+  ImGui::SameLine();
+
+  ImGui::ColorPicker4("##picker", (float*)&color,
+                      misc_flags | ImGuiColorEditFlags_NoSidePreview |
+                          ImGuiColorEditFlags_NoSmallPreview);
+}
+}  // namespace gui
+}  // namespace yaze
\ No newline at end of file
diff --git a/src/gui/color.h b/src/gui/color.h
new file mode 100644
index 00000000..fc9c5bc4
--- /dev/null
+++ b/src/gui/color.h
@@ -0,0 +1,20 @@
+#ifndef YAZE_GUI_COLOR_H
+#define YAZE_GUI_COLOR_H
+
+#include <imgui/imgui.h>
+
+#include <cmath>
+#include <string>
+
+#include "app/gfx/bitmap.h"
+#include "app/gfx/snes_palette.h"
+
+namespace yaze {
+namespace gui {
+
+void DisplayPalette(app::gfx::SNESPalette& palette, bool loaded);
+
+}  // namespace gui
+}  // namespace yaze
+
+#endif
\ No newline at end of file
diff --git a/test/asm_test.cc b/test/asm_test.cc
index 6ce8cfcc..e9212e8e 100644
--- a/test/asm_test.cc
+++ b/test/asm_test.cc
@@ -30,7 +30,7 @@ using ::testing::Return;
 class MockScript : public Script {
  public:
   MOCK_METHOD(absl::Status, ApplyPatchToROM, (ROM & rom));
-  MOCK_METHOD(absl::Status, GenerateMosaicChangeAssembly,
+  MOCK_METHOD(absl::Status, PatchOverworldMosaic,
               (ROM & rom, char mosaic_tiles[yaze::app::core::kNumOverworldMaps],
                int routine_offset, int hook_offset));
 };
@@ -40,15 +40,15 @@ TEST(ASMTest, ApplyMosaicChangePatchOk) {
   MockScript script;
   char mosaic_tiles[yaze::app::core::kNumOverworldMaps];
 
-  EXPECT_CALL(script, GenerateMosaicChangeAssembly(_, Eq(mosaic_tiles),
-                                                   Eq(0x1301D0 + 0x138000), 0))
+  EXPECT_CALL(script, PatchOverworldMosaic(_, Eq(mosaic_tiles),
+                                           Eq(0x1301D0 + 0x138000), 0))
       .WillOnce(Return(absl::OkStatus()));
 
   EXPECT_CALL(script, ApplyPatchToROM(_)).WillOnce(Return(absl::OkStatus()));
 
-  EXPECT_THAT(script.GenerateMosaicChangeAssembly(rom, mosaic_tiles,
-                                                  0x1301D0 + 0x138000, 0),
-              absl::OkStatus());
+  EXPECT_THAT(
+      script.PatchOverworldMosaic(rom, mosaic_tiles, 0x1301D0 + 0x138000, 0),
+      absl::OkStatus());
   EXPECT_THAT(script.ApplyPatchToROM(rom), absl::OkStatus());
 }