Introduction

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Highlight 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 version2022.3 LTS or newer
Render pipelineBuilt-in or URP
PlatformsAll platforms supported by the selected pipeline

Main Components

ComponentPurpose
HighlightEffect2DCore component - attach to any sprite to configure and render effects.
HighlightTrigger2DActivates highlight when the pointer enters the sprite collider. Automatically adds HighlightEffect2D if missing.
HighlightManager2DScene-wide manager that highlights any sprite under the pointer without per-object setup.
HighlightGroup2DGroups sprites so their outlines merge or remain independent.
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