@aclementerodrguez I’m still not clear what tool you’re using.
Do you mean this? https://www.codeandweb.com/free-sprite-sheet-packer
If so, I don’t see any way to generate 1x, 2x, … sheets. So, if you’re using the tool linked above, provide a screenshot of the case where you use 0.5 scaling so I can understand how you’re doing it.
Did you mean you’re using the Trial version of the downloadable Texture Packer: https://www.codeandweb.com/texturepacker ?
Notice how when @atanasovskyjiri answered, that answer included links to the tool and api details under discussion. That way, we are all on the same page and know exactly what is being discussed.
Please very specific and clear when asking for help.
Ex: If you use a tool, provide a link to where you got it. If you are referring to a tutorial, link to it. If you have problems with an API feature, link to the API page you’re referencing and having rouble. Never make people guess and you’ll get quicker and better help. While many of us are experienced and have used many tools, etc. The game dev world is constantly moving forward and changing.
Thanks!