Due to the low graphical performance of the WinForms app (namely, no hardware acceleration), the app was rewritten in WPF using the MVVM pattern.
Features API requester from https://api.hypixel.net/ of items on the local market and their respective prices that are then represented in graphical form.
Setting up a notification when a certain product falls below the set price and calculating profit is also possible.
Despite missing many features (still WiP), the app is stable and free of memory leaks.