Modding Help How to change the appearance of the npc's rooms?

For example, I want to change Harvey's room.
I had converted .xnb files into a png and .yaml files.
But npc's rooms converted only into .yaml and .tbin files (!) (so how can i change it if it is not in png)

But I also found a .png file with all furniture from the game and i want to use it, but i don't know how to choose the right size for new sheet in paint.net (mean a number of pixels)


so the main question is "how to change the map/location/building and add it to the game"??

thanks in advance

 

In order to edit tbin files you need Tiled Map Editor: https://www.mapeditor.org/

It's a lot more complicated than editing a png. This page has a good explanation of the basics: https://stardewvalleywiki.com/Modding:Maps

 

Thanks for the tip! I installed the latest version of Tiled
But when i try to open the .tbin file, system writes "Error opening '...\ BathHouse_Pool.tbin': Unknown file format."
I checked, and there is already a plugin for .tbin in the folder "tiled"
So what could be the problem?

 

Go to Edit, Preferences, and click the Plugins tab. There's a checkbox for .tbin files there