You're very welcome! I included the afdesign file since I used the Affinity Designer to make it and though the source material should be available. But yeah! The SVG is now included two. I guess it could be nice to have a repo for the geany's icon. There these files could be included. And this is the new icon with the SVG icon replaced with the older one:
<img width="512" src="https://user-images.githubusercontent.com/2157285/140705908-a26d40e7-48df-4561-8d11-f92e1b061fd8.png">