I managed many libraries by myself instead of through npm to reduce overall file size.

**Versions**

```json
{
  "mermaid": "9.4.0",
  "plantuml": "1.2023.2",
  "wavedrom": "2.9.1",
  "reveal": "4.10.0",
  "viz": "v2.0.0",
  "MathJax": "v2.7.5",
  "jquery": "v3.2.1",
  "jquery-contextmenu": "2.6.3",
  "markdown-it": "8.4.2",
  "JavaScript-MD5": "2.7.0",
  "katex": "v0.16.4",
  "crypto-js": "3.9.1-1",
  "jquery-modal": "0.8.0",
  "ditaa": "0.11",
  "font-awesome": "4.7",
  "flowchart": "1.11.3",
  "raphael.js": "2.2.7",
  "js-sequence-diagrams": "2.0.1",
  "webfont": "1.6.28",
  // "snap.svg": "0.5.1", // <= Doesn't work well in Preview. Use raphael.js instead
  "underscore": "1.8.3",
  "prism": "1.24.1"
}
```

_Attention_: Need to remove `font: inherit;` from `reveal.css`. Otherwise `KaTeX` and `MathJax` will have trouble rendering. Also don't forget to add the empty file `none.css`.

**cheerio 0.20.0** has bug rendering subgraph html(). `div` inside `svg` will be self-closed automatically, which is wrong. Therefore I downgrade it to 0.15.0

**cheerio 0.22.0** is buggy, restore to 0.15.0.

_Attention_: Need to append `.mermaid` to all selectors in `mermaid.css`, `mermaid.dark.css`, and `mermaid.forest.css`. Otherwise it will pollute `viz` graph.

_Attention_: **mpld3.v0.3.min.js** min version actually has problem, so use not minified version.

_Attention_: To add mhchem support to katex, we have to modify `contrib/mhchem.min.js` and replace `require("katex")` to `require("../katex.min.js")`