Hi,

that's not possible!

The 'get:' an 'calc:' are special values for xml-attributes that will be resolved during the xml parsing - see here:
https://krpano.com/docu/xml/#xmlget

So when there is just a 'calc:name' - that 'name' would refer to a global variable named 'name' - but as there no such variable 'undefined' will be returned.

Additionally that 'calc:' will only refer to the attribute value itself, there is no context like <style> at this time.

The style="..." attributes will be resolved in a later step where the 'get:' and 'calc:' attributes where already resolved, so using a 'calc:' in a style for later usage in <hotspot> isn't possible.

That <style> is a just collection of attributes that will be set for an other element, but it can't be used as template-engine.

I understand what you're trying to do, but that's not possible this way.
Consider using dynamic action code (e.g. addhotspot calls) - this way you have more possibilities and more flexibility.

Best regards,
Klaus