"resolution_fit": "1" doesn't work.

[Divzed]

I don't see any errors in ventoy and your code, when you remove "default_file": "0" it means "default_file": "0" because ventoy defaults like that, setting "resolution_fit": " 1", Ventoy selects the number of themes equal to the number of themes you provide, so there is no error here.

What? Seems like you missunderstood purpose of "resolution_fit": "1" key. Please read this documentation https://www.ventoy.net/en/plugin_theme.h...me_res_fit
The entire point of "resolution_fit": "1" is to filter out themes with resolution that match Screen/UEFI/Ventoy resolution and automatically apply this specific theme on boot.
This is why it is required to rename theme folder or file "theme.txt" with resolution affix, e.g. XYZ_1920x1080, XYZ_1024x768, XYZ_800x600... and add their paths to ventoy.json.
For some reason "resolution_fit": "1" filters out all themes regardless of specified resolution in ventoy.json theme > file plugin. This is not how it supposed to work according to documentation.



So, when I boot in Screen/UEFI/Ventoy resolution 1920x1080, theme XYZ_1920x1080 should be automatically selected on boot and the other themes should be ignored.
When I boot in Screen/UEFI/Ventoy resolution 1024x768, theme XYZ_1024x768 should be automatically selected on boot and the other themes should be ignored.
When I boot in Screen/UEFI/Ventoy resolution 800x600, theme XYZ_800x600 should be automatically selected on boot and the other themes should be ignored.