How to change svg arrow thickness?

Question

css

There is such an arrow code, how to change its thickness?

<symbol id="icon-right-arrow" viewBox="0 0 64 64">
<title>right-arrow</title>
<path d="M32 64c17.644 0 32-14.356 32-32s-14.356-32-32-32-32 14.356-32 32 14.356 32 32 32zM32 3.197c15.883 0 28.803 12.92 28.803 28.803s-12.92 28.803-28.803 28.803-28.803-12.92-28.803-28.803 12.92-28.803 28.803-28.803z"></path>
<path d="M18.101 33.605h23.935l-6.264 6.264c-0.626 0.626-0.626 1.631 0 2.258 0.313 0.313 0.718 0.47 1.135 0.47s0.822-0.157 1.135-0.47l8.992-8.992c0.626-0.626 0.626-1.631 0-2.258l-8.992-8.992c-0.626-0.626-1.631-0.626-2.258 0s-0.626 1.631 0 2.258l6.264 6.264h-23.948c-0.887 0-1.605 0.718-1.605 1.605s0.718 1.592 1.605 1.592z"></path>
</symbol>

Answer 1

change path. Or draw as a polygon. And format the question adequately:
https://jsfiddle.net/z0cbsLgp/
In order not to guess what is where.

Answer 2

You can give an outline but since patch 2 pieces glitches are possible