I have published a new version of my MSX/Coleco Sprite & Tile Set Editor for Windows.
This is a general update/refresh, now uses .NET 4.7.2 as version 4.5.x was failing to work correctly for older Windows Clients, i.e. Windows 7.
The installation link is here:
I have included a Donate button if anyone would like to contribute to the cost of the certificate.