Userscript metadata

Every userscript starts with a ==UserScript== block that tells the manager how to run it. This is GAS's exact header:

gas.userscript.js

// ==UserScript==
// @name         Giggles&Shit (GAS)
// @namespace    https://github.com/havaianasdestruido/Giggles-Shit
// @version      2.3.0
// @description  Giggles&Shit emoji/image picker for GitHub
// @author       havaianasdestruido
// @match        https://github.com/*
// @match        https://gist.github.com/*
// @icon         https://raw.githubusercontent.com/havaianasdestruido/Giggles-Shit/refs/heads/main/res/img/trollge.jpg
// @grant        none
// @run-at       document-idle
// ==/UserScript==

Field-by-field

Directive	Value	Why it matters
@name	Giggles&Shit (GAS)	Display name in the manager's dashboard.
@namespace	repo URL	Distinguishes this script from same-named ones; doubling as the canonical home link.
@version	2.3.0	Managers compare it during auto-update checks — bump it on every release or users won't get updates. Mirrored inside the code as GAS_VERSION.
@description	…	Shown on install dialogs.
@author	havaianasdestruido	Attribution.
@match	https://github.com/* https://gist.github.com/*	Injection rules: the script runs on every github.com page (needed because comment editors live on issues, PRs, discussions, …) and on every gist.github.com page (gist comments have the same formatting toolbar). Two separate lines because they're different hosts — see note below.
@icon	res/img/trollge.jpg (raw URL)	Icon shown in the manager UI — the trollge, obviously.
@grant	none	Requests zero privileged GM_* APIs; the script runs with plain page privileges. This keeps the install dialog permission-free.
@run-at	document-idle	Executes after the DOM is ready. The in-code bootstrap still handles the readyState === 'loading' edge for managers that fire early.

Notable absences

• No @require / @resource — zero external JS dependencies. The only network hits at runtime are the emoji images themselves.
• No @connect — nothing performs XHR, so no hosts need to be whitelisted.
• No @updateURL / @downloadURL — installed from the raw GitHub URL, managers infer update/download locations from it.
• No @noframes — GitHub editor usage lives in the top document; if embedded-frame issues ever appear, this is the directive to consider.

@match vs gist.github.com

https://github.com/* does not cover https://gist.github.com/* (different host), so GAS carries a second @match line for it:

 // @match        https://github.com/*
+// @match        https://gist.github.com/*

Gist's comment box renders the same [role="toolbar"] formatting toolbar as github.com, but its textarea doesn't always carry the same placeholder/aria-label/name wording GAS looks for on github.com. isEditor handles this with a fallback: if none of the attribute heuristics match, it still treats a <textarea> as an editor when its enclosing <form> contains a real formatting toolbar — scoped to the form (rather than an unbounded ancestor walk) so it can't accidentally match an unrelated toolbar elsewhere on the page.