appName and appDescription from config file json are ignored for html2 output

Description

I'm trying to use the docker container to generate html2 API docs, but when I specify a config with -c the appName and appDescription options within it are ignored by the template. However, infoEmail and infoUrl are working as expected.

Swagger-codegen version

docker image: swaggerapi/swagger-codegen-cli

Swagger declaration file content or url

No issue with the swagger content

My swagger-options.json:

{
    "appName": "payments service",
    "appDescription": "payments service combines fop and cardstore functionality"
}

Command line used for generation

docker run --rm -v ~/repos/swagger-codegen/modules/swagger-codegen/src/main/resources/htmlDocs2:/template --rm -v ${PWD}:/local swaggerapi/swagger-codegen-cli generate \
    -i http://host.docker.internal:8080/v2/api-docs \
    -c /local/swagger-options.json \
    -l html2 \
    -t /template \
    -o /local/docs/html2

Steps to reproduce

Run swagger-codegen-cli with html2 language and a config file as done above. This happens whether or not I use a custom template folder.

Start with the html2 template under modules/swagger-codegen/src/main/resources/htmlDocs2 and reproduce the issue using the shown swagger-codegen-cli Docker command and swagger-options.json. Trace how the html2 generator handles appName and appDescription compared with infoEmail and infoUrl; done means both configured values appear in the generated HTML.