change

Insert the given attribute into the PangoAttrList.

It will replace any attributes of the same type on that segment and be merged with any adjoining attributes that are identical.

This function is slower than method@Pango.AttrList.insert for creating an attribute list in order (potentially much slower for large lists). However, method@Pango.AttrList.insert is not suitable for continually changing a set of attributes since it never removes or combines existing attributes.

Parameters