how to display user fields in every item/category page?

Hello,
I need to to creat a field and let it displayed in the item template for every articles , just like the core/special field which can be displayed in every page if allowed for that template, I mean the core/special field don't need to be added every time when editing the articles. but for the user field, you have to add the value when creat or update the articles each time.

how should i do to accomplish it?

Thanks!

sorry can you explain more it a little confuse

Ok,sorry for my poor English,

for example, the special field , such as favourites or tags, they can be displayed in any articles , but the user field {color: red} which created by myself , red is the default value, you have to renew all of the articles you have created before, and then the field {color: red}can be displayed , otherwise you can not see the label {color: red} in the articles you have created before.

how should I do to let the field {color:red} be displayed in every articles I created before.

Thanks !

actualy it's a bug the default information it not reporting in all field ...
maybe you can insert this in template directly
regards

ok,I'll try.
thanks!