> For the complete documentation index, see [llms.txt](https://docs.planetstyles.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.planetstyles.net/feature-guides/group-post-highlight.md). # Group Post Highlight Let members of chosen groups highlight their own posts with their group's colour.

Group Post Highlight lets you define reusable **highlight styles** (border, background, text colour, drop shadow and an optional badge) and assign one to a group. Members of that group can then opt in to highlighting their own posts with it, using a toggle on the reply and edit forms. {% hint style="info" %} Requires phpBB 3.3.x and PHP 7.1+. {% endhint %} ### How it works 1. **Create a highlight style** in ACP under **Extensions → Group Post Highlight → Highlight Styles**: pick colours, border, shadow and an optional badge, previewed live as you build it. 2. **Assign the style to a group** in ACP under **Users & Groups → Groups**, and choose whether it's on by default for new posts. 3. **Members opt in per post** using the checkbox on the reply/edit form and quick reply. Only members whose *default* group has a style assigned see the toggle at all. A post's appearance is never "baked in"; it's resolved live from the poster's current default group every time the post is rendered, the same way phpBB already resolves username colour. Only the opt-in choice itself is stored per post, so editing a style in ACP instantly updates every past post using it. ### In this section


	Creating & managing highlight styles	Build a style's border, background, shadow and badge in the visual editor.
	Assigning a style to a group	Give a group its highlight style and decide whether it's on by default.
	The member highlight toggle	How the opt-in checkbox behaves on new posts, replies and edits.
	Custom & per-theme CSS	Fine-tune a style's CSS globally or for one installed frontend style only.

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