Summary:
if trying to apply incorrect theme, widget apply default theme and return TRUE.
so there is no way to check it really apply correct theme.
To resolve this problem, _elm_theme_set return three type enum
* related history : 4ca3ef4514
* elm_object_style_set is public api, so I didn't change it.
* typedef name [ Theme_Apply ] is temporarily, please suggest better one.
@fix
Reviewers: singh.amitesh, herb, Hermet, cedric, jpeg, raster
Subscribers: cedric, jpeg
Differential Revision: https://phab.enlightenment.org/D4073