diff --git a/src/nostalgia/core/studio/tilesheeteditormodel.cpp b/src/nostalgia/core/studio/tilesheeteditormodel.cpp
index 44545206..399b7d5f 100644
--- a/src/nostalgia/core/studio/tilesheeteditormodel.cpp
+++ b/src/nostalgia/core/studio/tilesheeteditormodel.cpp
@@ -3,7 +3,6 @@
  */
 
 #include <ox/claw/read.hpp>
-#include <ox/claw/write.hpp>
 
 #include <nostalgia/core/clipboard.hpp>
 #include <nostalgia/core/media.hpp>
@@ -35,6 +34,7 @@ class TileSheetClipboard: public ClipboardObject<TileSheetClipboard> {
 			m_pixels.emplace_back(colorIdx, pt);
 		}
 
+		[[nodiscard]]
 		constexpr const ox::Vector<Pixel> &pixels() const noexcept {
 			return m_pixels;
 		}
@@ -89,7 +89,7 @@ class DrawCommand: public studio::UndoCommand {
 			m_palIdx = palIdx;
 		}
 
-		constexpr DrawCommand(TileSheet *img, const TileSheet::SubSheetIdx &subSheetIdx, ox::Vector<std::size_t> idxList, int palIdx) noexcept {
+		constexpr DrawCommand(TileSheet *img, const TileSheet::SubSheetIdx &subSheetIdx, const ox::Vector<std::size_t> &idxList, int palIdx) noexcept {
 			m_img = img;
 			auto &subsheet = m_img->getSubSheet(subSheetIdx);
 			m_subSheetIdx = subSheetIdx;
@@ -115,7 +115,7 @@ class DrawCommand: public studio::UndoCommand {
 			return false;
 		}
 
-		constexpr auto append(ox::Vector<std::size_t> idxList) noexcept {
+		constexpr auto append(const ox::Vector<std::size_t> &idxList) noexcept {
 			auto out = false;
 			for (auto idx : idxList) {
 				out = append(idx) || out;