Describe the bug

appservice.bicep has this for runtimeName:

// Runtime Properties
@allowed([
  'dotnet', 'dotnetcore', 'dotnet-isolated', 'node', 'python', 'java', 'powershell', 'custom'
])
param runtimeName string
param runtimeNameAndVersion string = '${runtimeName}|${runtimeVersion}'
param runtimeVersion string

However, the portal produces strings that are capitalized:

I'm guessing the capitalization does not matter, I just want to confirm that since it stood out to me while porting my app over to the core modules. (I got an error when I used PYTHON as the runtime).