One of the first things I made as Kenny’s Apps is this logo.
The rounded stone caveman block represents an app like you would see on your phone.
I think the logo design has aged well, but the original graphic was relatively small and raster (pixel) format. When scaled up to TV resolution, especially 4K, you can see the pixels.
Vector graphics store an image as lines and shapes instead of pixels, and can be scaled cleanly to any screen resolution.
I found an open-source software called Inkscape and was able to convert my pixel logo into a slick new vector format.