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-# Design Proposals
-
-This page indexes major architectural proposals and design documents for McRogueFace.
-
-**Related Pages:**
-- [[Strategic-Direction]] - Project priorities and roadmap
-- [[Home]] - Documentation hub
-
----
-
-## Active Proposals
-
-### Next-Generation Grid & Entity System
-
-**Page:** [[Proposal-Next-Gen-Grid-Entity-System]]
-**Status:** Partially Implemented
-**Complexity:** Major architectural overhaul
-
-**Overview:** Comprehensive redesign of UIEntity/UIGrid systems to support:
-- Flexible entity content (any UIDrawable, not just sprites)
-- Multi-tile entities (2x2, 3x3, arbitrary sizes)
-- Spatial optimization (O(1) entity queries)
-- Memory efficiency (optional gridstate, chunk loading)
-
-**Completed Phases:**
-- Phase 1 (Performance): SpatialHash ([#115](../issues/115) - Closed), dirty flags ([#116](../issues/116) - Closed), batch operations ([#113](../issues/113) - Closed)
-- Dynamic layer system ([#147](../issues/147) - Closed)
-- Chunk-based rendering ([#123](../issues/123) - Closed)
-- Dirty flag RenderTexture caching ([#148](../issues/148) - Closed)
-
-**Remaining:**
-- [#117](../issues/117) - Memory pool for entities (Open)
-- [#124](../issues/124) - Grid point animation (Open)
-- Multi-tile entity support ([#233](../issues/233), [#236](../issues/236), [#237](../issues/237) - Open)
-
----
-
-## Proposal Process
-
-### Submitting a Proposal
-
-1. **Identify the problem** - What limitation are we addressing?
-2. **Research current system** - Document existing architecture and shortcomings
-3. **Draft proposal** - Create wiki page with problem statement, solution, migration path, performance impact
-4. **Link related issues** - Connect to Gitea issues
-5. **Request review** - Discussion in issue comments
-
-### Proposal Template
-
-```markdown
-# Proposal: [Feature Name]
-
-**Status:** [Design Phase / Under Review / Approved / Rejected / Implemented]
-**Complexity:** [Minor / Moderate / Major]
-**Impact:** [Systems affected]
-
-## Problem Statement
-[What problem does this solve?]
-
-## Current Limitations
-[What's broken or missing?]
-
-## Proposed Solution
-[High-level architecture and approach]
-
-## Migration Path
-[How to get from current to proposed without breaking existing code]
-
-## Performance Impact
-[Benchmarks, complexity analysis, memory impact]
-
-## Implementation Complexity
-[Estimated effort, risk areas, dependencies]
-```
-
----
-
-## Evaluation Criteria
-
-Proposals are evaluated on:
-
-1. **Alignment with Strategic Direction** - Does it fix foundation issues? Does it unblock tutorials?
-2. **Technical Merit** - Is the solution sound? Are tradeoffs documented?
-3. **Implementation Feasibility** - Is effort realistic? Can it be done incrementally?
-4. **Backward Compatibility** - Does it break existing code? Is migration clear?
-5. **User Impact** - Does it improve user experience?
-
----
-
-## Completed Proposals
-
-### Profiling System ([#104](../issues/104))
-
-**Status:** Implemented (October 2025)
-**Complexity:** Moderate
-
-- ScopedTimer RAII helper for instrumentation
-- ProfilingMetrics struct in GameEngine
-- F3 overlay for real-time visualization
-- Benchmark API (`start_benchmark()`, `end_benchmark()`, `log_benchmark()`)
-
-**Related Pages:** [[Performance-and-Profiling]]
-
-### Dynamic Layer System ([#147](../issues/147))
-
-**Status:** Implemented (November 2025)
-**Complexity:** Major
-
-- ColorLayer and TileLayer as standalone objects
-- Arbitrary number of layers per grid with z_index ordering
-- Layers below entities (z < 0) and above entities (z >= 0)
-- `grid.add_layer()`, `grid.remove_layer()`, `grid.layer("name")`
-
-**Related Pages:** [[Grid-Rendering-Pipeline]], [[Grid-System]]
-
-### Chunk-Based Rendering ([#123](../issues/123))
-
-**Status:** Implemented (November 2025)
-**Complexity:** Major
-
-- Large grids divided into chunks with per-chunk RenderTexture caching
-- Only visible chunks processed (viewport culling)
-- 1000x1000+ grids render efficiently
-
-**Related Pages:** [[Grid-Rendering-Pipeline]]
-
-### Dirty Flag Caching ([#148](../issues/148))
-
-**Status:** Implemented (November 2025)
-**Complexity:** Moderate
-
-- Layer changes mark containing chunks as dirty
-- Unchanged chunks reuse cached RenderTexture
-- Static scenes have near-zero CPU cost after initial render
-
-**Related Pages:** [[Grid-Rendering-Pipeline]], [[Performance-and-Profiling]]
-
-### Performance Foundation ([#113](../issues/113), [#115](../issues/115), [#116](../issues/116))
-
-**Status:** Implemented (Late 2025)
-**Complexity:** Major
-
-- SpatialHash for O(1) entity queries (`entities_in_radius()`)
-- Dirty flag propagation through UIDrawable hierarchy
-- Batch operations for grid manipulation
-
-**Related Pages:** [[Performance-Optimization-Workflow]]
-
-### Procedural Generation Systems ([#192](../issues/192))
-
-**Status:** Implemented (January 2026)
-**Complexity:** Major
-
-- HeightMap with noise generation, thresholding, kernel transforms
-- BSP tree with splitting, iteration, adjacency queries
-- NoiseSource with configurable octaves and lacunarity
-- Integration with Grid layers (apply_threshold, apply_ranges)
-
-**Related Pages:** [[Procedural-Generation]]
-
-### Tiled/LDtk Import
-
-**Status:** Implemented (January 2026)
-**Complexity:** Major
-
-- Tiled XML/JSON import with TileSetFile, WangSet types
-- LDtk project import with AutoRuleSet pattern matching
-- Wang tile terrain resolution and application
-
----
-
-## Proposal Status Legend
-
-- **Design Phase** - Proposal being drafted, research ongoing
-- **Under Review** - Proposal complete, awaiting feedback
-- **Approved** - Green-lit for implementation
-- **In Progress** - Implementation underway
-- **Deferred** - Good idea, wrong timing
-- **Rejected** - Not aligned with project direction
-- **Implemented** - Complete and merged
-
----
-
-**Navigation:**
-- [[Home]] - Documentation hub
-- [[Strategic-Direction]] - Project priorities
+# Design Proposals
+
+This page indexes major architectural proposals and design documents for McRogueFace.
+
+**Related Pages:**
+- [[Strategic-Direction]] - Project priorities and roadmap
+- [[Home]] - Documentation hub
+
+---
+
+## Active Proposals
+
+### Next-Generation Grid & Entity System
+
+**Page:** [[Proposal-Next-Gen-Grid-Entity-System]]
+**Status:** Partially Implemented
+**Complexity:** Major architectural overhaul
+
+**Overview:** Comprehensive redesign of UIEntity/UIGrid systems to support:
+- Flexible entity content (any UIDrawable, not just sprites)
+- Multi-tile entities (2x2, 3x3, arbitrary sizes)
+- Spatial optimization (O(1) entity queries)
+- Memory efficiency (optional gridstate, chunk loading)
+
+**Completed Phases:**
+- Phase 1 (Performance): SpatialHash ([#115](../issues/115) - Closed), dirty flags ([#116](../issues/116) - Closed), batch operations ([#113](../issues/113) - Closed)
+- Dynamic layer system ([#147](../issues/147) - Closed)
+- Chunk-based rendering ([#123](../issues/123) - Closed)
+- Dirty flag RenderTexture caching ([#148](../issues/148) - Closed)
+
+**Remaining:**
+- [#117](../issues/117) - Memory pool for entities (Open)
+- [#124](../issues/124) - Grid point animation (Open)
+- Multi-tile entity support ([#233](../issues/233), [#236](../issues/236), [#237](../issues/237) - Open)
+
+---
+
+## Proposal Process
+
+### Submitting a Proposal
+
+1. **Identify the problem** - What limitation are we addressing?
+2. **Research current system** - Document existing architecture and shortcomings
+3. **Draft proposal** - Create wiki page with problem statement, solution, migration path, performance impact
+4. **Link related issues** - Connect to Gitea issues
+5. **Request review** - Discussion in issue comments
+
+### Proposal Template
+
+```markdown
+# Proposal: [Feature Name]
+
+**Status:** [Design Phase / Under Review / Approved / Rejected / Implemented]
+**Complexity:** [Minor / Moderate / Major]
+**Impact:** [Systems affected]
+
+## Problem Statement
+[What problem does this solve?]
+
+## Current Limitations
+[What's broken or missing?]
+
+## Proposed Solution
+[High-level architecture and approach]
+
+## Migration Path
+[How to get from current to proposed without breaking existing code]
+
+## Performance Impact
+[Benchmarks, complexity analysis, memory impact]
+
+## Implementation Complexity
+[Estimated effort, risk areas, dependencies]
+```
+
+---
+
+## Evaluation Criteria
+
+Proposals are evaluated on:
+
+1. **Alignment with Strategic Direction** - Does it fix foundation issues? Does it unblock tutorials?
+2. **Technical Merit** - Is the solution sound? Are tradeoffs documented?
+3. **Implementation Feasibility** - Is effort realistic? Can it be done incrementally?
+4. **Backward Compatibility** - Does it break existing code? Is migration clear?
+5. **User Impact** - Does it improve user experience?
+
+---
+
+## Completed Proposals
+
+### Profiling System ([#104](../issues/104))
+
+**Status:** Implemented (October 2025)
+**Complexity:** Moderate
+
+- ScopedTimer RAII helper for instrumentation
+- ProfilingMetrics struct in GameEngine
+- F3 overlay for real-time visualization
+- Benchmark API (`start_benchmark()`, `end_benchmark()`, `log_benchmark()`)
+
+**Related Pages:** [[Performance-and-Profiling]]
+
+### Dynamic Layer System ([#147](../issues/147))
+
+**Status:** Implemented (November 2025)
+**Complexity:** Major
+
+- ColorLayer and TileLayer as standalone objects
+- Arbitrary number of layers per grid with z_index ordering
+- Layers below entities (z < 0) and above entities (z >= 0)
+- `grid.add_layer()`, `grid.remove_layer()`, `grid.layer("name")`
+
+**Related Pages:** [[Grid-Rendering-Pipeline]], [[Grid-System]]
+
+### Chunk-Based Rendering ([#123](../issues/123))
+
+**Status:** Implemented (November 2025)
+**Complexity:** Major
+
+- Large grids divided into chunks with per-chunk RenderTexture caching
+- Only visible chunks processed (viewport culling)
+- 1000x1000+ grids render efficiently
+
+**Related Pages:** [[Grid-Rendering-Pipeline]]
+
+### Dirty Flag Caching ([#148](../issues/148))
+
+**Status:** Implemented (November 2025)
+**Complexity:** Moderate
+
+- Layer changes mark containing chunks as dirty
+- Unchanged chunks reuse cached RenderTexture
+- Static scenes have near-zero CPU cost after initial render
+
+**Related Pages:** [[Grid-Rendering-Pipeline]], [[Performance-and-Profiling]]
+
+### Performance Foundation ([#113](../issues/113), [#115](../issues/115), [#116](../issues/116))
+
+**Status:** Implemented (Late 2025)
+**Complexity:** Major
+
+- SpatialHash for O(1) entity queries (`entities_in_radius()`)
+- Dirty flag propagation through UIDrawable hierarchy
+- Batch operations for grid manipulation
+
+**Related Pages:** [[Performance-Optimization-Workflow]]
+
+### Procedural Generation Systems ([#192](../issues/192))
+
+**Status:** Implemented (January 2026)
+**Complexity:** Major
+
+- HeightMap with noise generation, thresholding, kernel transforms
+- BSP tree with splitting, iteration, adjacency queries
+- NoiseSource with configurable octaves and lacunarity
+- Integration with Grid layers (apply_threshold, apply_ranges)
+
+**Related Pages:** [[Procedural-Generation]]
+
+### Tiled/LDtk Import
+
+**Status:** Implemented (January 2026)
+**Complexity:** Major
+
+- Tiled XML/JSON import with TileSetFile, WangSet types
+- LDtk project import with AutoRuleSet pattern matching
+- Wang tile terrain resolution and application
+
+---
+
+## Proposal Status Legend
+
+- **Design Phase** - Proposal being drafted, research ongoing
+- **Under Review** - Proposal complete, awaiting feedback
+- **Approved** - Green-lit for implementation
+- **In Progress** - Implementation underway
+- **Deferred** - Good idea, wrong timing
+- **Rejected** - Not aligned with project direction
+- **Implemented** - Complete and merged
+
+---
+
+**Navigation:**
+- [[Home]] - Documentation hub
+- [[Strategic-Direction]] - Project priorities
 - [[Proposal-Next-Gen-Grid-Entity-System]] - Active proposal
\ No newline at end of file