Introduction
beginner start hereHighlight Plus 2D · Start Here
Highlight Plus 2D adds outline, glow, overlay, see-through, shadow, zoom and hit-flash effects to 2D sprites in Unity. All effects are GPU-based and can be combined freely on any SpriteRenderer.
Key Features
- Outline — colored border with configurable width and quality levels
- Glow — multi-pass bloom around sprites with per-pass color, offset and alpha
- Overlay — animated color tint on the sprite surface
- See-Through — x-ray silhouette when occluded by other sprites
- Shadow — 2D or 3D drop shadow behind the sprite
- Zoom — scale the sprite when highlighted
- Hit FX — one-shot flash effect triggered from code
- Automatic manager — highlight any sprite under the pointer without per-object setup
- Group support — highlight parent + children as a single unit or independently
Requirements
| Unity version | 2022.3 LTS or newer |
| Render pipeline | Built-in or URP |
| Platforms | All platforms supported by the selected pipeline |
Main Components
| Component | Purpose |
|---|---|
| HighlightEffect2D | Core component — attach to any sprite to configure and render effects. |
| HighlightTrigger2D | Activates highlight when the pointer enters the sprite collider. Automatically adds HighlightEffect2D if missing. |
| HighlightManager2D | Scene-wide manager that highlights any sprite under the pointer without per-object setup. |
| HighlightGroup2D | Groups sprites so their outlines merge or remain independent. |
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