[nostalgia/core] Add PaletteV4, with support for page names, make PaletteColor object

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.Palette.ColorInfo;3

@@ -0,0 +1,12 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"fieldList" : 
+	[
+		{
+			"fieldName" : "name",
+			"typeId" : "net.drinkingtea.ox.BasicString#8#;1"
+		}
+	],
+	"primitiveType" : 5,
+	"typeName" : "net.drinkingtea.nostalgia.core.Palette.ColorInfo",
+	"typeVersion" : 3
+}

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.Palette.PalettePage;1

@@ -0,0 +1,23 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"fieldList" : 
+	[
+		{
+			"fieldName" : "name",
+			"typeId" : "net.drinkingtea.ox.BasicString#8#;1"
+		},
+		{
+			"fieldName" : "colors",
+			"subscriptLevels" : 1,
+			"subscriptStack" : 
+			[
+				{
+					"subscriptType" : 4
+				}
+			],
+			"typeId" : "net.drinkingtea.nostalgia.core.PaletteColor;1"
+		}
+	],
+	"primitiveType" : 5,
+	"typeName" : "net.drinkingtea.nostalgia.core.Palette.PalettePage",
+	"typeVersion" : 1
+}

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.Palette;3

@@ -1,6 +1,17 @@
 O1;net.drinkingtea.ox.TypeDescriptor;1;{
 	"fieldList" : 
 	[
+		{
+			"fieldName" : "colorInfo",
+			"subscriptLevels" : 1,
+			"subscriptStack" : 
+			[
+				{
+					"subscriptType" : 4
+				}
+			],
+			"typeId" : "net.drinkingtea.nostalgia.core.Palette.ColorInfo;3"
+		},
 		{
 			"fieldName" : "pages",
 			"subscriptLevels" : 2,
@@ -13,7 +24,7 @@ O1;net.drinkingtea.ox.TypeDescriptor;1;{
 					"subscriptType" : 4
 				}
 			],
-			"typeId" : "net.drinkingtea.nostalgia.core.Palette.Page;3"
+			"typeId" : "B.uint16;0"
 		}
 	],
 	"preloadable" : true,

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.Palette;4

@@ -0,0 +1,31 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"fieldList" : 
+	[
+		{
+			"fieldName" : "colorNames",
+			"subscriptLevels" : 1,
+			"subscriptStack" : 
+			[
+				{
+					"subscriptType" : 4
+				}
+			],
+			"typeId" : "net.drinkingtea.ox.BasicString#8#;1"
+		},
+		{
+			"fieldName" : "pages",
+			"subscriptLevels" : 1,
+			"subscriptStack" : 
+			[
+				{
+					"subscriptType" : 4
+				}
+			],
+			"typeId" : "net.drinkingtea.nostalgia.core.Palette.PalettePage;1"
+		}
+	],
+	"preloadable" : true,
+	"primitiveType" : 5,
+	"typeName" : "net.drinkingtea.nostalgia.core.Palette",
+	"typeVersion" : 4
+}

sample_project/.nostalgia/type_descriptors/net.drinkingtea.nostalgia.core.PaletteColor;1

@@ -0,0 +1,24 @@
+O1;net.drinkingtea.ox.TypeDescriptor;1;{
+	"fieldList" : 
+	[
+		{
+			"fieldName" : "r",
+			"typeId" : "B.uint8;0"
+		},
+		{
+			"fieldName" : "g",
+			"typeId" : "B.uint8;0"
+		},
+		{
+			"fieldName" : "b",
+			"typeId" : "B.uint8;0"
+		},
+		{
+			"fieldName" : "a",
+			"typeId" : "B.uint8;0"
+		}
+	],
+	"primitiveType" : 5,
+	"typeName" : "net.drinkingtea.nostalgia.core.PaletteColor",
+	"typeVersion" : 1
+}

src/nostalgia/modules/core/include/nostalgia/core/palette.hpp

@@ -4,10 +4,6 @@
 
 #pragma once
 
-#include <ox/std/array.hpp>
-#include <ox/std/point.hpp>
-#include <ox/std/size.hpp>
-#include <ox/std/types.hpp>
 #include <ox/std/vector.hpp>
 #include <ox/model/def.hpp>
 
@@ -17,6 +13,54 @@
 
 namespace nostalgia::core {
 
+struct PaletteColorV1 {
+    static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.PaletteColor";
+    static constexpr auto TypeVersion = 1;
+    uint8_t r{}, g{}, b{}, a{};
+    constexpr PaletteColorV1() noexcept = default;
+    constexpr PaletteColorV1(Color16 const c) noexcept:
+        r{red16(c)},
+        g{green16(c)},
+        b{blue16(c)},
+        a{alpha16(c)} {}
+    constexpr operator Color16() const noexcept { return color16(r, g, b, a); }
+};
+
+oxModelBegin(PaletteColorV1)
+	oxModelField(r)
+	oxModelField(g)
+	oxModelField(b)
+	oxModelField(a)
+oxModelEnd()
+
+using PaletteColor = PaletteColorV1;
+
+
+struct PalettePageV1 {
+    static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.Palette.PalettePage";
+    static constexpr auto TypeVersion = 1;
+    ox::String name;
+    ox::Vector<PaletteColorV1> colors;
+    constexpr PalettePageV1() noexcept = default;
+    constexpr PalettePageV1(ox::StringParam pName, ox::Vector<PaletteColorV1> pColors) noexcept:
+        name(std::move(pName)), colors(std::move(pColors)) {}
+    constexpr PalettePageV1(ox::StringParam pName, ox::Vector<Color16> const&pColors) noexcept:
+        name(std::move(pName)) {
+        colors.reserve(pColors.size());
+        for (auto const c : pColors) {
+            colors.emplace_back(c);
+        }
+    }
+};
+
+oxModelBegin(PalettePageV1)
+	oxModelField(name)
+	oxModelField(colors)
+oxModelEnd()
+
+using PalettePage = PalettePageV1;
+
+
 struct NostalgiaPalette {
 	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.NostalgiaPalette";
 	static constexpr auto TypeVersion = 1;
@@ -36,6 +80,7 @@ struct PaletteV2 {
 	ox::Vector<ox::Vector<Color16>> pages;
 };
 
+
 struct PaletteV3 {
 	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.Palette";
 	static constexpr auto TypeVersion = 3;
@@ -44,17 +89,54 @@ struct PaletteV3 {
 		static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.Palette.ColorInfo";
 		static constexpr auto TypeVersion = 3;
 		ox::String name;
-		constexpr ColorInfo() noexcept = default;
-		constexpr explicit ColorInfo(ox::StringView pName) noexcept:
-			name(pName) {}
-		constexpr explicit ColorInfo(ox::String &&pName) noexcept:
-			name(std::move(pName)) {}
 	};
 	ox::Vector<ColorInfo> colorInfo;
 	ox::Vector<ox::Vector<Color16>> pages;
 };
 
-using Palette = PaletteV3;
+[[nodiscard]]
+constexpr bool valid(PaletteV3 const&p) noexcept {
+	auto const colors = p.colorInfo.size();
+	return ox::all_of(p.pages.begin(), p.pages.end(), [colors](auto const&page) {
+		return page.size() == colors;
+	});
+}
+
+constexpr ox::Error repair(PaletteV3 &p) noexcept {
+	auto const colors = p.colorInfo.size();
+	for (auto &page : p.pages) {
+		page.resize(colors);
+	}
+	return {};
+}
+
+
+struct PaletteV4 {
+	static constexpr auto TypeName = "net.drinkingtea.nostalgia.core.Palette";
+	static constexpr auto TypeVersion = 4;
+	static constexpr auto Preloadable = true;
+	ox::Vector<ox::String> colorNames;
+	ox::Vector<PalettePageV1> pages;
+};
+
+[[nodiscard]]
+constexpr bool valid(PaletteV4 const&p) noexcept {
+	auto const colors = p.colorNames.size();
+	return ox::all_of(p.pages.begin(), p.pages.end(), [colors](PalettePageV1 const&page) {
+		return page.colors.size() == colors;
+	});
+}
+
+constexpr ox::Error repair(PaletteV4 &p) noexcept {
+	auto const colors = p.colorNames.size();
+	for (auto &page : p.pages) {
+		page.colors.resize(colors);
+	}
+	return {};
+}
+
+
+using Palette = PaletteV4;
 
 
 struct CompactPaletteV1 {
@@ -64,29 +146,36 @@ struct CompactPaletteV1 {
 	ox::Vector<ox::Vector<Color16>> pages{};
 };
 
-using CompactPalette = CompactPaletteV1;
-
 [[nodiscard]]
-constexpr bool valid(Palette const&p) noexcept {
-	auto const colors = p.colorInfo.size();
-	return ox::all_of(p.pages.begin(), p.pages.end(), [colors](auto const&page) {
+constexpr bool valid(CompactPaletteV1 const&p) noexcept {
+	size_t colors{};
+	for (auto const&page : p.pages) {
+		colors = ox::max(colors, page.size());
+	}
+	return ox::all_of(p.pages.begin(), p.pages.end(), [colors](ox::Vector<Color16> const&page) {
 		return page.size() == colors;
 	});
 }
 
-[[nodiscard]]
-constexpr ox::Error repair(Palette &p) noexcept {
-	auto const colors = p.colorInfo.size();
+constexpr ox::Error repair(CompactPaletteV1 &p) noexcept {
+	size_t colors{};
+	for (auto const&page : p.pages) {
+		colors = ox::max(colors, page.size());
+	}
 	for (auto &page : p.pages) {
 		page.resize(colors);
 	}
 	return {};
 }
 
+
+using CompactPalette = CompactPaletteV1;
+
+
 [[nodiscard]]
 constexpr Color16 color(Palette const&pal, size_t page, size_t idx) noexcept {
-	if (page < pal.pages.size() && idx < pal.pages[page].size()) [[likely]] {
-		return pal.pages[page][idx];
+	if (page < pal.pages.size() && idx < pal.pages[page].colors.size()) [[likely]] {
+		return pal.pages[page].colors[idx];
 	}
 	return 0;
 }
@@ -111,7 +200,7 @@ constexpr Color16 color(CompactPalette const&pal, size_t idx) noexcept {
 
 [[nodiscard]]
 constexpr auto &colors(Palette &pal, size_t page = 0) noexcept {
-	return pal.pages[page];
+	return pal.pages[page].colors;
 }
 
 [[nodiscard]]
@@ -132,7 +221,7 @@ constexpr auto &colors(CompactPalette const&pal, size_t page = 0) noexcept {
 [[nodiscard]]
 constexpr size_t colorCnt(Palette const&pal, size_t page = 0) noexcept {
 	if (page < pal.pages.size()) [[likely]] {
-		return pal.pages[page].size();
+		return pal.pages[page].colors.size();
 	}
 	return 0;
 }
@@ -149,7 +238,7 @@ constexpr size_t colorCnt(CompactPalette const&pal, size_t page = 0) noexcept {
 constexpr size_t largestPage(Palette const&pal) noexcept {
 	size_t out{};
 	for (auto const&page : pal.pages) {
-		out = ox::max(out, page.size());
+		out = ox::max(out, page.colors.size());
 	}
 	return out;
 }
@@ -184,6 +273,11 @@ oxModelBegin(PaletteV3)
 	oxModelField(pages)
 oxModelEnd()
 
+oxModelBegin(PaletteV4)
+	oxModelField(colorNames)
+	oxModelField(pages)
+oxModelEnd()
+
 oxModelBegin(CompactPaletteV1)
 	oxModelField(pages)
 oxModelEnd()

src/nostalgia/modules/core/src/keel/keelmodule.cpp

@@ -19,6 +19,7 @@ static class: public keel::Module {
 		NostalgiaPaletteToPaletteV1Converter m_nostalgiaPaletteToPaletteV1Converter;
 		PaletteV1ToPaletteV2Converter m_paletteV1ToPaletteV2Converter;
 		PaletteV2ToPaletteV3Converter m_paletteV2ToPaletteV3Converter;
+		PaletteV3ToPaletteV4Converter m_paletteV3ToPaletteV4Converter;
 		PaletteToCompactPaletteConverter m_paletteToCompactPaletteConverter;
 		TileSheetV1ToTileSheetV2Converter m_tileSheetV1ToTileSheetV2Converter;
 		TileSheetV2ToTileSheetV3Converter m_tileSheetV2ToTileSheetV3Converter;
@@ -41,6 +42,8 @@ static class: public keel::Module {
 				keel::generateTypeDesc<CompactTileSheetV1>,
 				keel::generateTypeDesc<PaletteV1>,
 				keel::generateTypeDesc<PaletteV2>,
+				keel::generateTypeDesc<PaletteV3>,
+				keel::generateTypeDesc<PaletteV4>,
 				keel::generateTypeDesc<CompactPaletteV1>,
 			};
 		}
@@ -51,6 +54,7 @@ static class: public keel::Module {
 				&m_nostalgiaPaletteToPaletteV1Converter,
 				&m_paletteV1ToPaletteV2Converter,
 				&m_paletteV2ToPaletteV3Converter,
+				&m_paletteV3ToPaletteV4Converter,
 				&m_paletteToCompactPaletteConverter,
 				&m_tileSheetV1ToTileSheetV2Converter,
 				&m_tileSheetV2ToTileSheetV3Converter,
@@ -78,7 +82,8 @@ static class: public keel::Module {
 					if (typeId == ox::ModelTypeId_v<NostalgiaPalette> ||
 					    typeId == ox::ModelTypeId_v<PaletteV1> ||
 						typeId == ox::ModelTypeId_v<PaletteV2> ||
-						typeId == ox::ModelTypeId_v<PaletteV3>) {
+						typeId == ox::ModelTypeId_v<PaletteV3> ||
+						typeId == ox::ModelTypeId_v<PaletteV4>) {
 						oxReturnError(keel::convertBuffToBuff<CompactPalette>(
 								ctx, buff, ox::ClawFormat::Metal).moveTo(buff));
 						return true;

src/nostalgia/modules/core/src/keel/typeconv.cpp

@@ -28,6 +28,7 @@ ox::Error PaletteV2ToPaletteV3Converter::convert(
 		PaletteV3 &dst) const noexcept {
 	dst.pages = std::move(src.pages);
 	if (!dst.pages.empty()) {
+		dst.colorInfo.reserve(dst.pages[0].size());
 		for (size_t i = 0; i < dst.pages[0].size(); ++i) {
 			dst.colorInfo.emplace_back(ox::sfmt("Color {}", i + 1));
 		}
@@ -35,11 +36,33 @@ ox::Error PaletteV2ToPaletteV3Converter::convert(
 	return {};
 }
 
+ox::Error PaletteV3ToPaletteV4Converter::convert(
+		keel::Context&,
+		PaletteV3 &src,
+		PaletteV4 &dst) const noexcept {
+	dst.pages.reserve(src.pages.size());
+	for (auto i = 1; auto &page : src.pages) {
+		dst.pages.emplace_back(ox::sfmt("Page {}", i), std::move(page));
+		++i;
+	}
+	dst.colorNames.reserve(src.colorInfo.size());
+	for (auto &ci : src.colorInfo) {
+		dst.colorNames.emplace_back(std::move(ci.name));
+	}
+	return {};
+}
+
 ox::Error PaletteToCompactPaletteConverter::convert(
 		keel::Context&,
 		Palette &src,
 		CompactPalette &dst) const noexcept {
-	dst.pages = std::move(src.pages);
+	dst.pages.reserve(src.pages.size());
+	for (auto &page : src.pages) {
+		auto &p = dst.pages.emplace_back();
+		for (auto const c : page.colors) {
+			p.emplace_back(c);
+		}
+	}
 	return {};
 }
 

src/nostalgia/modules/core/src/keel/typeconv.hpp

@@ -28,6 +28,10 @@ class PaletteV2ToPaletteV3Converter: public keel::Converter<PaletteV2, PaletteV3
 		ox::Error convert(keel::Context&, PaletteV2 &src, PaletteV3 &dst) const noexcept final;
 };
 
+class PaletteV3ToPaletteV4Converter: public keel::Converter<PaletteV3, PaletteV4> {
+		ox::Error convert(keel::Context&, PaletteV3 &src, PaletteV4 &dst) const noexcept final;
+};
+
 class PaletteToCompactPaletteConverter: public keel::Converter<Palette, CompactPalette> {
 	ox::Error convert(keel::Context&, Palette &src, CompactPalette &dst) const noexcept final;
 };

src/nostalgia/modules/core/src/studio/paletteeditor/paletteeditor-imgui.cpp

@@ -49,13 +49,13 @@ void PaletteEditorImGui::keyStateChanged(turbine::Key key, bool down) {
 void PaletteEditorImGui::draw(studio::StudioContext&) noexcept {
 	auto const paneSize = ImGui::GetContentRegionAvail();
 	{
-		ImGui::BeginChild("Pages", ImVec2(250, paneSize.y), true);
+		ImGui::BeginChild("Pages", {250, paneSize.y}, true);
 		drawPagesEditor();
 		ImGui::EndChild();
 	}
 	ImGui::SameLine();
 	{
-		ImGui::BeginChild("Colors", ImVec2(-1, paneSize.y), true);
+		ImGui::BeginChild("Colors", {-1, paneSize.y}, true);
 		drawColorsEditor();
 		ImGui::EndChild();
 	}
@@ -84,7 +84,7 @@ void PaletteEditorImGui::drawColorsEditor() noexcept {
 	auto const colorEditorWidth = 220;
 	static constexpr auto toolbarHeight = 40;
 	{
-		auto const sz = ImVec2(70, 24);
+		auto constexpr sz = ImVec2{70, 24};
 		if (ImGui::Button("Add", sz)) {
 			auto const colorSz = colorCnt(m_pal, m_page);
 			constexpr Color16 c = 0;
@@ -126,7 +126,7 @@ void PaletteEditorImGui::drawColorsEditor() noexcept {
 			"Colors",
 			6,
 			tableFlags,
-			ImVec2(tblWidth, colorsSz.y - (toolbarHeight + 5)));
+			{tblWidth, colorsSz.y - (toolbarHeight + 5)});
 	{
 		ImGui::TableSetupColumn("Idx", ImGuiTableColumnFlags_WidthFixed, 25);
 		ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_WidthFixed, 100);
@@ -135,30 +135,28 @@ void PaletteEditorImGui::drawColorsEditor() noexcept {
 		ImGui::TableSetupColumn("Blue", ImGuiTableColumnFlags_WidthFixed, 40);
 		ImGui::TableSetupColumn("Preview", ImGuiTableColumnFlags_NoHide);
 		ImGui::TableHeadersRow();
-		for (auto i = 0u; auto const&c : m_pal.pages[m_page]) {
-			ImGui::PushID(static_cast<int>(i));
+		for (auto i = 0u; auto const&c : m_pal.pages[m_page].colors) {
+			ig::IDStackItem const idStackItem(static_cast<int>(i));
 			ImGui::TableNextRow();
 			drawColumn(i + 1);
-			drawColumnLeftAlign(m_pal.colorInfo[i].name);
+			drawColumnLeftAlign(m_pal.colorNames[i]);
 			drawColumn(red16(c));
 			drawColumn(green16(c));
 			drawColumn(blue16(c));
 			ImGui::TableNextColumn();
-			auto const ic = ImGui::GetColorU32(
-					ImVec4(redf(c), greenf(c), bluef(c), 1));
+			auto const ic = ImGui::GetColorU32({redf(c), greenf(c), bluef(c), 1});
 			ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, ic);
 			if (ImGui::Selectable(
 					"##ColorRow", i == m_selectedColorRow, ImGuiSelectableFlags_SpanAllColumns)) {
 				m_selectedColorRow = i;
 			}
-			ImGui::PopID();
 			++i;
 		}
 	}
 	ImGui::EndTable();
 	if (colorEditor) {
 		ImGui::SameLine();
-		ImGui::BeginChild("ColorEditor", ImVec2(colorEditorWidth, -1), true);
+		ImGui::BeginChild("ColorEditor", {colorEditorWidth, -1}, true);
 		drawColorEditor();
 		ImGui::EndChild();
 	}
@@ -168,7 +166,7 @@ void PaletteEditorImGui::drawPagesEditor() noexcept {
 	constexpr auto tableFlags = ImGuiTableFlags_RowBg;
 	auto const paneSz = ImGui::GetContentRegionAvail();
 	constexpr auto toolbarHeight = 40;
-	auto const btnSz = ImVec2(paneSz.x / 3 - 5.5f, 24);
+	auto const btnSz = ImVec2{paneSz.x / 3 - 5.5f, 24};
 	if (ImGui::Button("Add", btnSz)) {
 		std::ignore = pushCommand<DuplicatePageCommand>(m_pal, 0u, m_pal.pages.size());
 		m_page = m_pal.pages.size() - 1;
@@ -186,19 +184,18 @@ void PaletteEditorImGui::drawPagesEditor() noexcept {
 			"PageSelect",
 			2,
 			tableFlags,
-			ImVec2(paneSz.x, paneSz.y - (toolbarHeight + 5)));
+			{paneSz.x, paneSz.y - (toolbarHeight + 5)});
 	{
 		ImGui::TableSetupColumn("Page", ImGuiTableColumnFlags_WidthFixed, 60);
 		ImGui::TableHeadersRow();
 		for (auto i = 0u; i < m_pal.pages.size(); ++i) {
-			ImGui::PushID(static_cast<int>(i));
+			ig::IDStackItem const idStackItem(static_cast<int>(i));
 			ImGui::TableNextRow();
 			drawColumn(i + 1);
 			ImGui::SameLine();
 			if (ImGui::Selectable("##PageRow", i == m_page, ImGuiSelectableFlags_SpanAllColumns)) {
 				m_page = i;
 			}
-			ImGui::PopID();
 		}
 	}
 	ImGui::EndTable();
@@ -210,7 +207,7 @@ void PaletteEditorImGui::drawColorEditor() noexcept {
 	int g = green16(c);
 	int b = blue16(c);
 	int const a = alpha16(c);
-	auto const&currentName = m_pal.colorInfo[m_selectedColorRow].name;
+	auto const&currentName = m_pal.colorNames[m_selectedColorRow];
 	ox::IString<50> name;
 	name = currentName;
 	ImGui::InputText("Name", name.data(), name.cap() + 1);
@@ -229,9 +226,9 @@ void PaletteEditorImGui::drawColorEditor() noexcept {
 	if (c != newColor) {
 		std::ignore = pushCommand<UpdateColorCommand>(m_pal, m_page, m_selectedColorRow, newColor);
 	}
-	if (currentName != name.data()) {
+	if (currentName != name) {
 		std::ignore = pushCommand<UpdateColorInfoCommand>(
-				m_pal, m_selectedColorRow, Palette::ColorInfo{name.data()});
+				m_pal, m_selectedColorRow, ox::String{name});
 	}
 }
 

src/nostalgia/modules/core/src/studio/paletteeditor/paletteeditor.cpp

@@ -14,13 +14,13 @@ ApplyColorAllPagesCommand::ApplyColorAllPagesCommand(Palette &pal, size_t const
 		ox::Vector<Color16> colors;
 		colors.reserve(m_pal.pages.size());
 		for (auto const&p : m_pal.pages) {
-			colors.emplace_back(p[m_idx]);
+			colors.emplace_back(p.colors[m_idx]);
 		}
 		return colors;
 	}()) {
 	auto const c = color(m_pal, m_page, m_idx);
-	if (ox::all_of(m_pal.pages.begin(), m_pal.pages.end(), [this, c](ox::SpanView<Color16> const page) {
-			return page[m_idx] == c;
+	if (ox::all_of(m_pal.pages.begin(), m_pal.pages.end(), [this, c](PalettePage const&page) {
+			return page.colors[m_idx] == c;
 		})) {
 		throw studio::NoChangesException();
 	}
@@ -33,14 +33,14 @@ int ApplyColorAllPagesCommand::commandId() const noexcept {
 ox::Error ApplyColorAllPagesCommand::redo() noexcept {
 	auto const c = color(m_pal, m_page, m_idx);
 	for (auto &page : m_pal.pages) {
-		page[m_idx] = c;
+		page.colors[m_idx] = c;
 	}
 	return {};
 }
 
 ox::Error ApplyColorAllPagesCommand::undo() noexcept {
 	for (size_t p = 0u; auto &page : m_pal.pages) {
-		page[m_idx] = m_origColors[p];
+		page.colors[m_idx] = m_origColors[p];
 		++p;
 	}
 	return {};
@@ -51,8 +51,8 @@ DuplicatePageCommand::DuplicatePageCommand(Palette &pal, size_t srcIdx, size_t d
 		m_pal(pal),
 		m_dstIdx(dstIdx) {
 	auto const&src = m_pal.pages[srcIdx];
-	m_page.reserve(src.size());
-	for (auto const&s : src) {
+	m_page.reserve(src.colors.size());
+	for (auto const&s : src.colors) {
 		m_page.emplace_back(s);
 	}
 }
@@ -62,12 +62,12 @@ int DuplicatePageCommand::commandId() const noexcept {
 }
 
 ox::Error DuplicatePageCommand::redo() noexcept {
-	m_pal.pages.emplace(m_dstIdx, std::move(m_page));
+	m_pal.pages.emplace(m_dstIdx, "", std::move(m_page));
 	return {};
 }
 
 ox::Error DuplicatePageCommand::undo() noexcept {
-	m_page = std::move(m_pal.pages[m_dstIdx]);
+	m_page = std::move(m_pal.pages[m_dstIdx].colors);
 	return m_pal.pages.erase(m_dstIdx).error;
 }
 
@@ -85,7 +85,7 @@ int RemovePageCommand::commandId() const noexcept {
 }
 
 ox::Error RemovePageCommand::redo() noexcept {
-	m_page = std::move(colors(m_pal, m_idx));
+	m_page = std::move(m_pal.pages[m_idx]);
 	return m_pal.pages.erase(m_idx).error;
 }
 
@@ -105,17 +105,17 @@ int AddColorCommand::commandId() const noexcept {
 }
 
 ox::Error AddColorCommand::redo() noexcept {
-	m_pal.colorInfo.emplace(m_idx, ox::sfmt("Color {}", m_pal.colorInfo.size() + 1));
+	m_pal.colorNames.emplace(m_idx, ox::sfmt("Color {}", m_pal.colorNames.size() + 1));
 	for (auto &page : m_pal.pages) {
-		page.emplace(m_idx, m_color);
+		page.colors.emplace(m_idx, m_color);
 	}
 	return {};
 }
 
 ox::Error AddColorCommand::undo() noexcept {
-	oxReturnError(m_pal.colorInfo.erase(m_idx));
+	oxReturnError(m_pal.colorNames.erase(m_idx));
 	for (auto &page : m_pal.pages) {
-		oxReturnError(page.erase(m_idx));
+		oxReturnError(page.colors.erase(m_idx));
 	}
 	return {};
 }
@@ -128,7 +128,7 @@ RemoveColorCommand::RemoveColorCommand(Palette &pal, size_t const idx) noexcept:
 		ox::Vector<Color16> colors;
 		colors.reserve(m_pal.pages.size());
 		for (auto const&p : m_pal.pages) {
-			colors.emplace_back(p[m_idx]);
+			colors.emplace_back(p.colors[m_idx]);
 		}
 		return colors;
 	}()) {}
@@ -138,18 +138,18 @@ int RemoveColorCommand::commandId() const noexcept {
 }
 
 ox::Error RemoveColorCommand::redo() noexcept {
-	m_colorInfo = std::move(m_pal.colorInfo[m_idx]);
-	oxReturnError(m_pal.colorInfo.erase(m_idx));
+	m_colorInfo = std::move(m_pal.colorNames[m_idx]);
+	oxReturnError(m_pal.colorNames.erase(m_idx));
 	for (auto &page : m_pal.pages) {
-		oxReturnError(page.erase(m_idx));
+		oxReturnError(page.colors.erase(m_idx));
 	}
 	return {};
 }
 
 ox::Error RemoveColorCommand::undo() noexcept {
-	m_pal.colorInfo.emplace(m_idx, std::move(m_colorInfo));
+	m_pal.colorNames.emplace(m_idx, std::move(m_colorInfo));
 	for (size_t p = 0; auto &page : m_pal.pages) {
-		page.emplace(m_idx, m_colors[p]);
+		page.colors.emplace(m_idx, m_colors[p]);
 		++p;
 	}
 	return {};
@@ -159,11 +159,11 @@ ox::Error RemoveColorCommand::undo() noexcept {
 UpdateColorInfoCommand::UpdateColorInfoCommand(
 		Palette &pal,
 		size_t idx,
-		Palette::ColorInfo newColorInfo):
+		ox::StringParam newColorInfo):
 		m_pal(pal),
 		m_idx(idx),
 		m_altColorInfo(std::move(newColorInfo)) {
-	if (m_pal.colorInfo[m_idx].name == m_altColorInfo.name) {
+	if (m_pal.colorNames[m_idx] == m_altColorInfo) {
 		throw studio::NoChangesException();
 	}
 }
@@ -179,7 +179,6 @@ bool UpdateColorInfoCommand::mergeWith(UndoCommand const&cmd) noexcept {
 	return true;
 }
 
-[[nodiscard]]
 int UpdateColorInfoCommand::commandId() const noexcept {
 	return static_cast<int>(PaletteEditorCommandId::UpdateColor);
 }
@@ -195,7 +194,7 @@ ox::Error UpdateColorInfoCommand::undo() noexcept {
 }
 
 void UpdateColorInfoCommand::swap() noexcept {
-	std::swap(m_pal.colorInfo[m_idx], m_altColorInfo);
+	std::swap(m_pal.colorNames[m_idx], m_altColorInfo);
 }
 
 
@@ -224,7 +223,6 @@ bool UpdateColorCommand::mergeWith(UndoCommand const&cmd) noexcept {
 	return true;
 }
 
-[[nodiscard]]
 int UpdateColorCommand::commandId() const noexcept {
 	return static_cast<int>(PaletteEditorCommandId::UpdateColor);
 }

src/nostalgia/modules/core/src/studio/paletteeditor/paletteeditor.hpp

@@ -7,7 +7,6 @@
 #include <studio/studio.hpp>
 
 #include <nostalgia/core/color.hpp>
-#include <nostalgia/core/gfx.hpp>
 #include <nostalgia/core/palette.hpp>
 
 namespace nostalgia::core {
@@ -48,7 +47,7 @@ class DuplicatePageCommand: public studio::UndoCommand {
 	private:
 		Palette &m_pal;
 		size_t m_dstIdx = 0;
-		ox::Vector<Color16> m_page;
+		ox::Vector<PaletteColor> m_page;
 
 	public:
 		DuplicatePageCommand(Palette &pal, size_t srcIdx, size_t dstIdx) noexcept;
@@ -71,7 +70,7 @@ class RemovePageCommand: public studio::UndoCommand {
 	private:
 		Palette &m_pal;
 		size_t m_idx = 0;
-		ox::Vector<Color16> m_page;
+		PalettePage m_page;
 
 	public:
 		RemovePageCommand(Palette &pal, size_t idx) noexcept;
@@ -111,7 +110,7 @@ class RemoveColorCommand: public studio::UndoCommand {
 	private:
 		Palette &m_pal;
 		size_t const m_idx = 0;
-		Palette::ColorInfo m_colorInfo;
+		ox::String m_colorInfo;
 		ox::Vector<Color16> const m_colors;
 
 	public:
@@ -132,13 +131,13 @@ class UpdateColorInfoCommand: public studio::UndoCommand {
 	private:
 		Palette &m_pal;
 		size_t const m_idx{};
-		Palette::ColorInfo m_altColorInfo;
+		ox::String m_altColorInfo;
 
 	public:
 		UpdateColorInfoCommand(
 				Palette &pal,
 				size_t idx,
-				Palette::ColorInfo newColorInfo);
+				ox::StringParam newColorInfo);
 
 		~UpdateColorInfoCommand() noexcept override = default;
 
@@ -162,7 +161,7 @@ class UpdateColorCommand: public studio::UndoCommand {
 		Palette &m_pal;
 		size_t const m_page = 0;
 		size_t const m_idx{};
-		Color16 m_altColor{};
+		PaletteColor m_altColor{};
 
 	public:
 		UpdateColorCommand(
@@ -203,7 +202,6 @@ class MoveColorCommand: public studio::UndoCommand {
 		[[nodiscard]]
 		int commandId() const noexcept override;
 
-	public:
 		ox::Error redo() noexcept override;
 
 		ox::Error undo() noexcept override;

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp

@@ -343,7 +343,7 @@ void TileSheetEditorImGui::showSubsheetEditor() noexcept {
 	}
 }
 
-ox::Error TileSheetEditorImGui::exportSubhseetToPng(int scale) noexcept {
+ox::Error TileSheetEditorImGui::exportSubhseetToPng(int const scale) const noexcept {
 	oxRequire(path, studio::saveFile({{"PNG", "png"}}));
 	// subsheet to png
 	auto const&img = m_model.img();
@@ -469,7 +469,7 @@ void TileSheetEditorImGui::drawPaletteSelector() noexcept {
 		{
 			auto const&pal = m_model.pal();
 			if (pal.pages.size() > m_model.palettePage()) {
-				for (auto i = 0u; auto const&c: pal.pages[m_model.palettePage()]) {
+				for (auto i = 0u; auto const&c: pal.pages[m_model.palettePage()].colors) {
 					ImGui::PushID(static_cast<int>(i));
 					// Column: color idx
 					ImGui::TableNextColumn();
@@ -484,7 +484,7 @@ void TileSheetEditorImGui::drawPaletteSelector() noexcept {
 					auto ic = ImGui::GetColorU32(ImVec4(redf(c), greenf(c), bluef(c), 1));
 					ImGui::TableSetBgColor(ImGuiTableBgTarget_CellBg, ic);
 					ImGui::TableNextColumn();
-					auto const&name =  i < pal.colorInfo.size() ? pal.colorInfo[i].name.c_str() : "";
+					auto const&name =  i < pal.colorNames.size() ? pal.colorNames[i].c_str() : "";
 					ImGui::Text("%s", name);
 					ImGui::TableNextColumn();
 					ImGui::Text("(%02d, %02d, %02d)", red16(c), green16(c), blue16(c));

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.hpp

@@ -97,7 +97,7 @@ class TileSheetEditorImGui: public studio::Editor {
 	private:
 		void showSubsheetEditor() noexcept;
 
-		ox::Error exportSubhseetToPng(int scale) noexcept;
+		ox::Error exportSubhseetToPng(int scale) const noexcept;
 
 		void drawTileSheet(ox::Vec2 const&fbSize) noexcept;
 

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditormodel.cpp

@@ -27,8 +27,8 @@
 namespace nostalgia::core {
 
 Palette const TileSheetEditorModel::s_defaultPalette = {
-	.colorInfo = {ox::Vector<Palette::ColorInfo>{{}}},
-	.pages = {{ox::Vector<Color16>(128)}},
+	.colorNames = {ox::Vector<ox::String>{{}}},
+	.pages = {{"Page 1", ox::Vector<Color16>(128)}},
 };
 
 // delete pixels of all non-leaf nodes