• Add ReactiveUI v23 module initializer for test project

• Add spray support to morph tool

• Morph tool now supports spray mode (density, speed controls)

• Inherits brush line shapes, outline mode, and transforms

• Morph target setup runs before first spray tick

• Add item id and search to chests fixes #2189

• Add mica fix and fallback for windows fixes #2184

• Add CAD-style wire routing for pencil tool

• Add WireRouter with 90° elbow and 45° miter routing algorithms (4-connectivity only)

• Add click-to-click drawing: first click sets anchor, preview renders to cursor, second click commits

• W key cycles routing modes: Wire 90° → Wire 45° → Normal → repeat (anchor preserved)

• Q key toggles direction: Auto ↔ → Horizontal-first ↓ → Vertical-first

• Right-click or Escape cancels anchor, second Escape exits CAD mode

• Render colored preview tiles in XNA matching active wire color

• Add status bar indicator with localized mode text and Unicode direction arrows

• Add 59 unit tests for WireRouter covering all quadrants, edge cases, and 4-connectivity

• Works with all paint modes (tile/wall, wire, liquid)

• Add bus routing fixes #2190

• Add wire routing scripting API

• Add routeWire() and routeBus() to draw API for CAD-style routing

• Add routeWirePath() and routeBusPath() for coordinate-only queries

• Support 90° elbow and 45° miter modes with auto/h/v direction

• Bus wireCount auto-converts to brush size based on spacing

• Works with any picker config (wires, tiles, liquids)

• Add 10 unit tests for routing API

• Add overflow menu to activity bar for short windows

• Add OverflowTabPanel that replaces TabPanel in the activity bar

• Hidden tabs appear in a context menu anchored bottom-right

• Icon foreground bound explicitly to avoid black-on-startup

• Add line drawing previews to pencil

• Add shift+line preview for pencil and brush tools

• Show preview line from last click position to cursor when holding shift

• Brush tool supports full brush shape preview (High Quality Brush Preview setting)

• Preview computed at render time to avoid input/render thread race conditions

• Uses same transparent blue color as the standard cursor preview

• Normal cursor preview at tip remains visible during line preview

• Add debounce for high quality brush line preview

• Cache HQ brush preview and debounce recomputation by 250ms

• Show stale cache while cursor is moving, recompute when paused

• Simple Bresenham line preview (pencil/LQ) remains instant

• Clear cache when shift is released

• Fix Calamity2 tile loading: support new dense .twld format #1075
• Add ParseTileDataDense/ParseWallDataDense for new tileData/wallData format
• Add BuildTileDataDense/BuildWallDataDense for round-trip save
• Fix 1-based saveType indexing (0=vanilla, 1+=mod tile map index)
• Add bounds checking for stream desync resilience
• Fix legacy format to read initial skip bytes before first record
• Add 4 Calamity2 real-world tests (parse, quadrants, round-trip)
• Add RawTileData/RawWallData properties to TwldData
• Fix mod tile/wall rendering: accurate colors, layer depth, Safe prefix #1075
• Sample tile/wall colors from first texture frame instead of full-sheet average
• Add SampleFirstFrameColor() to TmodTextureExtractor for rawimg textures
• Fix tile fallback colored square rendering at LayerTileTextures depth
• Add Safe* prefix wall matching (mirrors existing Unsafe* fix)
• Log unmatched wall names at debug level for diagnostics
• Fix pre-existing unit test failures
• Add SaveTypeToTileMapIndex/SaveTypeToWallMapIndex lookup population in TwldFileTests
• Fix ModTileEntry_FromTag expected SaveType (index+1 when no "value" key)
• Fix WallProperty.Id serialization: add JsonIgnoreCondition.Never to prevent
  WhenWritingDefault from skipping Id=0 (which deserializes to default -1)
• Add textureWrap data for tile 185 (Small Decos) in tiles.json
• Fix ApplicationInsights v3 API changes: use GlobalProperties for removed context properties
• Fix LuaCSharp 0.5.3 API changes: update delegate signatures and exception types
• Fix ReactiveUI v23 build: replace RxApp with RxSchedulers, update ReactiveUI.WPF
• Fix for weird chest sizes
• Fix build

• Update dependency VirtualizingWrapPanel to 2.5.0 (#2183)
• Update actions/setup-dotnet action to v5
• Update actions/checkout action to v6
• Update dependency Microsoft.ApplicationInsights to v3
• Update dependency coverlet.collector to v8
• Update Avalonia
• Update dependency SkiaSharp to 3.119.2
• Update dependency LuaCSharp to 0.5.3
• Update actions/upload-artifact action to v6
• Update dependency System.Drawing.Common to v10
• Update dependency ReactiveUI to v23
• Update crowdin link

• TModLoader .twld support: NBT parser, tile/wall overlay, round-trip save #1075

• Add BigEndianReader/Writer for tModLoader's big-endian NBT format (TEdit.Common/IO)

• Add TagCompound and TagIO: GZip-compressed NBT serializer compatible with tModLoader

• Add TModLoader/ module: TwldFile, TwldData, ModTileEntry, ModWallEntry, ModTileData, ModWallData

• Parse .twld sidecar: header, tile/wall maps, binary tile/wall data, chest items, NPCs, tile entities

• Overlay mod tiles/walls onto World.Tiles using virtual IDs beyond vanilla range

• Register dynamic TileProperty/WallProperty with stable hash-based placeholder colors

• Strip mod data before vanilla .wld save, re-apply after (transparent round-trip)

• Preserve unmodified .twld sections (modData, bestiary, killCounts, etc.) for lossless save

• 25 new tests: TagCompound round-trip, BigEndian encoding, binary tile parsing, entry serialization

• ModScraper: extract tile/wall colors from .tmod archives #1075

• Add TEdit.ModScraper console app to scan .tmod files for tile/wall textures

• Support both PNG and tModLoader .rawimg texture formats

• Sample weighted average colors from non-transparent pixels

• Output modColors.json mapping mod:tile → hex color

• Search Steam Workshop and tModLoader Mods directories by default

• Add modColors.json loading to TwldFile for better mod tile rendering

• Fall back to hash-based colors when no scraped color available

• Cache mod colors after first load for performance

• Add 8 regression tests: vanilla world guards, modColors.json parsing

• All 21 TwldFile tests pass, 0 regressions

• World Explorer: add Vanilla/tModLoader toggle button #1075

• Add toggle button in search bar to switch between Vanilla and tModLoader worlds

• Filter world list by IsTModLoader flag from world header

• Scan tModLoader worlds folder (My Games/Terraria/tModLoader/Worlds)

• Show world count for each mode in the toggle button

• Auto-select tModLoader mode when no vanilla worlds exist

• Add localization keys: world_explorer_tab_vanilla, world_explorer_tab_tmodloader

• Convert .wld test files to LFS pointers

• Files were committed as raw binaries before LFS was configured

• Re-stage through LFS clean filter to store as proper pointers

• Load mod tile/wall textures from .tmod archives at world load #1075

• Add TmodTextureExtractor to read .tmod archives and extract tile/wall textures (PNG + rawimg)

• Add name-to-virtual-ID mapping in TwldFile for bridging texture paths to tile/wall IDs

• Wire LoadModTextures into WorldViewModel load pipeline after RegisterModSprites

• Add Texture2D loading helpers for PNG bytes and raw RGBA with color key transparency

• Process texture queue in render loop for deferred mod texture creation

• Fix rawimg decoder to handle version=1 header prefix (3 int32s not 2)

• Find .tmod files via cascading search: tModLoader Mods folder, Steam workshop

• Add 19 unit tests for rawimg decoding, name mapping, and real .tmod integration

• Add tmodloader-support.md tracking remaining mod support work

• Item editing

• Mod chest item editing: copy/paste, UI display, item textures #1075

• Copy/paste now carries mod fields (ModName, ModItemName, prefix, NBT data)

• NetId setter clears mod identity so vanilla item selection works cleanly

• Chest editor shows italic mod item name when IsModItem is true

• Extract item textures from .tmod archives, display 24x24 previews

• FastChestItem template uses MultiBinding for mod+vanilla preview lookup

• Add ModItemPreviewCache (string-keyed) and ItemPreviewMultiConverter

• Fix pre-existing: UndoManager TileImportance bounds check for mod tiles

• Fix pre-existing: ClipboardView binding path (Buffer.Name)

• Mod item support for tile entity editors #1075

• Add mod fields (ModName, ModItemName, etc.) to TileEntityItem and TileEntity

• TileEntity.ToItem()/FromItem() helpers for single-item entities

• TileEntityItem carries mod identity through Copy, ToItem, and implicit operators

• Item.ToTileEntityItem() and implicit operator preserve mod fields

• ApplyModTileEntityItems: overlay .twld NBT mod data onto tile entities at load

• RebuildModTileEntityItems: serialize mod data back to NBT at save

• Fix sync save path missing RebuildModChestItems call

• Copy/paste now works for all single-item entity types with mod identity

• XAML bindings for IsModItem/ModItemDisplayName on all tile entity editors

• Updated tmodloader-support.md with tile entity architecture notes

• Merge remote-tracking branch 'origin/renovate/actions-setup-dotnet-5.x' (#2076)

• Merge remote-tracking branch 'origin/renovate/actions-checkout-6.x' (#2102)

• Merge remote-tracking branch 'origin/renovate/major-applicationinsights-dotnet-monorepo' (#2129)

• Merge remote-tracking branch 'origin/renovate/coverlet.collector-8.x' (#2154)

• Merge remote-tracking branch 'origin/renovate/avalonia' (#2157)

• Merge remote-tracking branch 'origin/renovate/skiasharp-monorepo' (#2158)

• Merge remote-tracking branch 'origin/renovate/luacsharp-0.x' (#2161)

• Merge remote-tracking branch 'origin/renovate/major-github-artifact-actions' (#2162)

• Merge remote-tracking branch 'origin/renovate/major-dotnet-monorepo' (#2163)

• Merge remote-tracking branch 'origin/renovate/reactiveui-23.x'

Conflicts:

src/TEdit/TEdit.csproj (#2176)

• New Crowdin translations by GitHub Action

• New Crowdin translations by GitHub Action

• Merge main into feature/modloader

• Resolve conflicts: take main's dependency updates (ReactiveUI v23,
  System.Drawing.Common v10, ApplicationInsights v3)

• Keep modloader's Mode=OneWay bindings in PaintModeView for mod tile support

• Re-add modloader localization keys dropped during merge (nbt_explorer_title,
  world_explorer_tab_vanilla, world_explorer_tab_tmodloader)

• Restore Xunit.SkippableFact package reference for modloader tests

• Fix ReactiveUI v23 module initializer for TEdit.Terraria.Tests

• Merge remote-tracking branch 'origin/main' into feature/modloader

• Drag ClipboardBuffer

• Wire mode and paste improvements