[un_pogaz]

The Windows installer (I don't know how the other OS works) proposes to define Sigil as main application... but it doesn't define an icon and let Windows do something ugly.

Here is the one I defined. Retrieved from the internet, no idea of its origin (probably a variant of Adobe icons), so not sure if it is usable here, but a good idea.

If someone wants to make an icon that "we know where it comes from", I put the official logo of the ePub format (SVG version)