Concise word for "common default but with individual appearance"
Solution 1:
I would say the best choice would be the combination: default document settings. This can be interpreted the default settings of the application related to documents, or the setting of the application related to the default document, which would be the blank document that loads when the editor is opened. I think either interpretation works for your purposes, unless I misunderstand.
Solution 2:
What about creating a descriptor portmanteau word, such as thisdoc and then use thisdoc settings for your label. If you can tolerate a longer version, it vould be thisdocument or this-document.