Default value for unresolved tags

[Galapen]

Similar to Apache Common's StringSubstitutor, it would be helpful to be able to define text that should be placed if a tag/placeholder doesn't exist.

StringSubstitutor uses the following syntax ${myVar:-Unknown} where "Unknown" would be substituted if myVar is unresolved. A similar syntax could be introduced into MiniMessage e.g. <fallback:other-tag:fallback-text:args-other>.