itch.io

Hy, it's supposed to have:

• One executable (Pixelorama.x86_32 or Pixelorama.x86_64)
• One PCK file (Pixelorama.pck)
• A pixelorama_data folder (containing brushes, patterns, etc...)

For Linux Pixelorama comes in portable form.

There's also an official Flatpak available as well:

https://flathub.org/apps/com.orama_interactive.Pixelorama