Simply adding a file to the root of the chrome-mv3 folder for dev and production when running plasmo
I need to add a
- it must be in the root
- see above; so NOT in the assets folder
schema.json- it must be in the root
- see above; so NOT in the assets folder
Solution
It's as easy as adding the file to the root and then including it in 
package.jsonmanifest"web_accessible_resources": [
{
"resources": [
"assets/config.json",
"assets/icon.png",
"schema.json"
],
"matches": [
"https://*/*",
"http://*/*"
]
}
]