issacoid
https://svg-hosting.vercel.app/api/svg?url=https://scrapbox.io/api/code/shoya140/issacoid/icon.svg
code:icon.svg
<svg width="99" height="99" viewBox="0 0 2 2" xmlns="http://www.w3.org/2000/svg">
<rect x="0" y="0" width="1" height="1" fill="#473939"/>
<rect x="1" y="0" width="1" height="1" fill="#605F92"/>
<rect x="0" y="1" width="1" height="1" fill="#B5B5C5"/>
<rect x="1" y="1" width="1" height="1" fill="#434261"/>
</svg>
$ \textcolor{473939}{\rule{20pt}{20pt}}\textcolor{605F92}{\rule{20pt}{20pt}} \\[-3.5pt]\textcolor{B5B5C5}{\rule{20pt}{20pt}}\textcolor{434261}{\rule{20pt}{20pt}}