Microsoft.Extensions.Logging.ILogger - Custom formatting of logging properties

Question

Without creating a brand new customer ILogger type, is it possible to somehow register "formatters" for different parameter types?

Example:

double someVar = 10.3;
/*snip*/

logger.LogDebug("Look at this property {MyProp}", someVar);

Can I somehow change how the someVar in this case is formatted by the logger? AFAIK, it just defaults to ToString() on each of the provided property values.

In my specific case, I want to change how protobuf messages are logged in properties. So I would like to intercept the formatting of any IMessage object, and apply custom formatting to those. using any existing logger that is. Is that possible?