Linux native, preferably for the KDE dekstop environment, dictionary app

I have a Windows .NET 2.0 dictionary application whose developer is dead.
The application has one executable and a folder consisting of images whose name is the first matching word of the page plus the file extension.
The main executable has a search box, back and next buttons and an integrated image viewer.

I want that application ported to be a KDE-native application.

I would like the finished code to be available as GPL software so that others can benefit from this porting effort.
It is quite used in the chinese-italian community here.