chore(conductor): Add new track 'UI Theme Overhaul & Style System'

conductor/tracks/ui_theme_overhaul_20260308/plan.md

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+# Implementation Plan: UI Theme Overhaul & Style System
+
+## Phase 1: Research & Typography
+- [ ] Task: Research `imgui-bundle` text rendering and theme APIs.
+    - [ ] Identify the best way to load and render high-quality fonts (Inter/Maple Mono).
+    - [ ] Check for Freetype support or specialized rendering forks within the current environment.
+- [ ] Task: Implement Professional Typography.
+    - [ ] Integrate Inter and Maple Mono font assets.
+    - [ ] Update the font loading logic in `src/gui_2.py` (or a dedicated theme module).
+    - [ ] Verify font rendering quality and scaling across the UI.
+- [ ] Task: Conductor - User Manual Verification 'Phase 1: Research & Typography' (Protocol in workflow.md)
+
+## Phase 2: Professional Style & Theming
+- [ ] Task: Implement the "Subtle Rounding" Professional Theme.
+    - [ ] Define the professional color palette and style variables (rounding, padding, spacing).
+    - [ ] Utilize `imgui-bundle`'s styling APIs to apply the theme globally.
+    - [ ] Refactor existing hardcoded styling in `src/gui_2.py` to use the new theme system.
+- [ ] Task: Write visual regression tests or simulation scripts to verify the new theme's consistency.
+- [ ] Task: Conductor - User Manual Verification 'Phase 2: Professional Style & Theming' (Protocol in workflow.md)
+
+## Phase 3: Advanced Visual Effects (Shaders)
+- [ ] Task: Implement Custom UI Shaders.
+    - [ ] Develop and integrate shaders for rounded window corners and soft shadows.
+    - [ ] Develop and integrate shaders for glass/acrylic (blur) effects on selected panels.
+    - [ ] Develop and integrate shaders for improved text anti-aliasing.
+- [ ] Task: Perform a performance audit to ensure shaders do not degrade FPS.
+- [ ] Task: Conductor - User Manual Verification 'Phase 3: Advanced Visual Effects (Shaders)' (Protocol in workflow.md)
+
+## Phase 4: Layout Management & Multi-Viewport
+- [ ] Task: Implement Multi-Viewport Support.
+    - [ ] Add the "Multi-Viewport" toggle checkbox to the main menu bar.
+    - [ ] Ensure the application correctly handles panel detachment and re-attachment.
+- [ ] Task: Implement UI Layout Presets.
+    - [ ] Create a management system (Save/Load/Delete) for window layout presets.
+    - [ ] Ensure presets capture window geometry and the Multi-Viewport state.
+    - [ ] Persist layout presets to the project configuration (`manual_slop.toml` or a dedicated file).
+- [ ] Task: Verify layout restoration accuracy across multiple presets.
+- [ ] Task: Conductor - User Manual Verification 'Phase 4: Layout Management & Multi-Viewport' (Protocol in workflow.md)
+
+## Phase 5: Final Polish & Verification
+- [ ] Task: Conduct a final UI audit for "professionalism" and consistency.
+- [ ] Task: Run the full simulation suite to ensure no regressions in tool interaction or workflow.
+- [ ] Task: Conductor - User Manual Verification 'Phase 5: Final Polish & Verification' (Protocol in workflow.md)