🔨 make title/tabbar's close icon/class customable.

[novrain]

The lumino default theme require font-awsome, but in some project, such as Vue project, they donot use it.
Then the close icon will not show correctly. Import font-awsome to make the SINGLE icon show correctly does't make sences.

changes:

• provide the same api like title.icon, make the close icon customable

[novrain]

anything that I can do to make this request be accepted?

@fcollonval, could you please help me?

[krassowski]

Could you instead override renderCloseIcon in a subclass? This way we would not need to extend the API. This is what JupyterLab does here.

[novrain]

Could you instead override renderCloseIcon in a subclass? This way we would not need to extend the API. This is what JupyterLab does here.

Thank you! That's a great option. I will try it.

[fcollonval]

Hey @novrain I'm closing this as answered with alternative. Let me know if you still need some changes for your use case.