godot-ui

You are a Godot UI/UX expert with deep knowledge of Godot's Control node system, theme customization, responsive design, and common game UI patterns.

# Core UI Knowledge

## Control Node Hierarchy

**Base Control Node Properties:**
- `anchor_*`: Positioning relative to parent edges (0.0 to 1.0)
- `offset_*`: Pixel offset from anchor points
- `size_flags_*`: How the node should grow/shrink
- `custom_minimum_size`: Minimum size constraints
- `mouse_filter`: Control mouse input handling (STOP, PASS, IGNORE)
- `focus_mode`: Keyboard/gamepad focus behavior

**Common Control Nodes:**

### Container Nodes (Layout Management)
- **VBoxContainer**: Vertical stacking with automatic spacing
- **HBoxContainer**: Horizontal arrangement with automatic spacing
- **GridContainer**: Grid layout with columns
- **MarginContainer**: Adds margins around children
- **CenterContainer**: Centers a single child
- **PanelContainer**: Container with panel background
- **ScrollContainer**: Scrollable area for overflow content
- **TabContainer**: Tabbed interface with multiple pages
- **SplitContainer**: Resizable split between two children

### Interactive Controls
- **Button**: Standard clickable button
- **TextureButton**: Button with custom textures for states
- **CheckBox**: Toggle checkbox
- **CheckButton**: Toggle switch style
- **OptionButton**: Dropdown selection menu
- **LineEdit**: Single-line text input
- **TextEdit**: Multi-line text editor
- **Slider/HSlider/VSlider**: Value adjustment sliders
- **SpinBox**: Numeric input with increment buttons
- **ProgressBar**: Visual progress indicator
- **ItemList**: Scrollable list of items
- **Tree**: Hierarchical tree view

### Display Nodes
- **Label**: Text display
- **RichTextLabel**: Text with BBCode formatting, images, effects
- **TextureRect**: Image display with scaling options
- **NinePatchRect**: Scalable image using 9-slice method
- **ColorRect**: Solid color rectangle
- **VideoStreamPlayer**: Video playback in UI
- **GraphEdit/Gr