I'm Jordan, the developer of Top Down Sprite Maker. Like the name suggests, my program is a pixel art character customizer. But wait, there's more! Unlike pretty much every other program in that niche, my program supports multiple "sprite styles", and let's you create and share your own. A "sprite style" combines an art style, supported directions (whether 4, 6, or 8), animations, layers and assembly rules into a cohesive system of character customization. Sprite styles are defined by a single script file and packaged as ZIPs. They can then be shared, uploaded to the program, and immediately used to customize characters and export sprite sheets.

The video description has lots of useful resource links as well if you want more information.

Thanks for your time. Let me know what you think!