Merge pull request #15277 from akissinger/katex

added katex.min.css to webpack for math support (main PR in matrix-react-sdk)

docs/labs.md

@@ -7,6 +7,10 @@ to `Settings->Labs`. This list is non-exhaustive and subject to change, chat in
 **Be warned! Labs features are not finalised, they may be fragile, they may change, they may be
 dropped. Ask in the room if you are unclear about any details here.**
 
+## Render LaTeX maths in messages (`feature_latex_maths`)
+
+Enables rendering of LaTeX maths in messages using [KaTeX](https://katex.org/). LaTeX between single dollar-signs is interpreted as inline maths and double dollar-signs as display maths (i.e. centred on its own line).
+
 ## New spinner design (`feature_new_spinner`)
 
 Replaces the old spinner image with a new, svg-based one featuring a sleeker design.

webpack.config.js

@@ -41,6 +41,9 @@ module.exports = (env, argv) => {
             "jitsi": "./src/vector/jitsi/index.ts",
             "usercontent": "./node_modules/matrix-react-sdk/src/usercontent/index.js",
 
+            // CSS for LaTeX maths outout
+            "katex": "./node_modules/matrix-react-sdk/node_modules/katex/dist/katex.min.css",
+
             // CSS themes
             "theme-legacy": "./node_modules/matrix-react-sdk/res/themes/legacy-light/css/legacy-light.scss",
             "theme-legacy-dark": "./node_modules/matrix-react-sdk/res/themes/legacy-dark/css/legacy-dark.scss",