Create a text file pack.mcmeta (with exactly this extension, not .txt) and paste:
{
"pack": {
"min_format": 97,
"max_format": 97,
"description": "Мой ресурспак"
}
}
The numbers 97 are the format of Minecraft 26.3. For another version, see the number in the table «pack_format»I don't know. Pack with a different number will mark "Incompatible," but you can still turn it on -- just part of the texture might not fit. The description works. Color Codes §.