- Added Photopea theme implementation report and design specifications.
- Created tool options and settings panels to match Photopea's layout.
- Implemented settings persistence to save and load user preferences.
- Updated toolbar to include SVG icons and tool options in a single row.
- Enhanced tool settings with specific parameters for each tool type.
- Added functionality for resetting tool settings to defaults.
- Updated styles in `styles.rs` to include new pane and canvas backgrounds, while marking unused functions with `#[allow(dead_code)]`.
- Modified `text_editor.rs` to suppress warnings for unused function parameters.
- Enhanced `title_bar.rs` to create a unified title/menu bar with improved hover states and draggable functionality.
- Simplified `sidebar.rs` to always use a single-column layout and improved tool button styling with hover feedback.
- Added a new `viewport.rs` file to implement a custom canvas viewport widget for zoom and pan rendering, replacing the previous layout-based approach.
- Updated theme management in `theme.rs` to suppress warnings for unused methods.
- Adjusted line count report to reflect recent changes in codebase.
- Implemented a theme system in `iced-panel-adapter` for consistent styling across panels.
- Created `iced-panel-ai-chat` for an AI assistant interface, including message handling and UI components.
- Developed `iced-panel-script` for a DSL editor with execution capabilities, allowing procedural drawing commands.
- Introduced message types for interaction in both chat and script panels.
- Added color and theme management for improved visual consistency.
- Changed default VISION_BACKEND from CPU to GPU for better performance.
- Made `map_brush_style` public to allow external access.
- Updated `Engine` struct to use pooled buffers for stroke snapshots, reducing memory allocations during brush strokes.
- Introduced `CompositeSnapshot` for efficient background compositing without blocking the UI thread.
- Implemented `SendPtr` for safe raw pointer handling across threads.
- Enhanced `commit_pending_history` to recycle buffers and improve performance.
- Fixed cursor preview issues for procedural brushes by removing unnecessary preset synchronization.
- Added tests and documentation for new features and performance improvements.
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