I recently built colorr.me, a tool to create simple solid or gradient backgrounds which can be used for Notion covers, background images and so on. You only have to provide the HEX codes and customize the size and other properties of the image.

I would love to hear feedback and suggestions for this. Please note that this is just a fun project for me to learn Go. It can be used to have custom background for e.g. your Notion page but it's surely nothing too serious :)

Thanks for taking your time to look at it.