# Implementation Plan: Frosted Glass Background Effect

## Phase 1: Shader Development & Integration
- [ ] Task: Audit `src/shader_manager.py` to identify existing background/post-process integration points.
- [ ] Task: Write Tests: Verify `ShaderManager` can compile and bind a multi-pass blur shader.
- [ ] Task: Implement: Add `FrostedGlassShader` (GLSL) to `src/shader_manager.py`.
- [ ] Task: Implement: Integrate the blur shader into the `ShaderManager` lifecycle.
- [ ] Task: Conductor - User Manual Verification 'Phase 1: Shader Development & Integration' (Protocol in workflow.md)

## Phase 2: Framebuffer Capture Pipeline
- [ ] Task: Write Tests: Verify the FBO capture mechanism correctly samples the back buffer and stores it in a texture.
- [ ] Task: Implement: Update `src/shader_manager.py` or `src/gui_2.py` to handle "pre-rendering" of the background into a texture for blurring.
- [ ] Task: Implement: Ensure the blurred texture is updated every frame or on window move events.
- [ ] Task: Conductor - User Manual Verification 'Phase 2: Framebuffer Capture Pipeline' (Protocol in workflow.md)

## Phase 3: GUI Integration & Rendering
- [ ] Task: Write Tests: Verify that a mocked ImGui window successfully calls the frosted glass rendering logic.
- [ ] Task: Implement: Create a `_render_frosted_background(self, pos, size)` helper in `src/gui_2.py`.
- [ ] Task: Implement: Update panel rendering loops (e.g. `_gui_func`) to inject the frosted background before calling `imgui.begin()` for major panels.
- [ ] Task: Conductor - User Manual Verification 'Phase 3: GUI Integration & Rendering' (Protocol in workflow.md)

## Phase 4: UI Controls & Configuration
- [ ] Task: Write Tests: Verify that modifying blur uniforms via the Live Editor updates the shader state.
- [ ] Task: Implement: Add "Frosted Glass" sliders (Blur, Tint, Opacity) to the **Shader Editor** in `src/gui_2.py`.
- [ ] Task: Implement: Update `src/theme.py` to parse and store frosted glass settings from `config.toml`.
- [ ] Task: Conductor - User Manual Verification 'Phase 4: UI Controls & Configuration' (Protocol in workflow.md)
