Thanks for your explanation.
But yes, I already used it.
Difference tool said me:
FILE 1: WITHOUT STYLEHACK
FILE 2: WITH STYLEHACK
PROPERTIES FOUND IN FILE 1, BUT NOT IN FILE 2
=============================================
PROPERTIES FOUND IN FILE 2, BUT NOT IN FILE 1
=============================================
PROPERTIES WITH DIFFERENT VALUES BETWEEN FILE 1 AND FILE 2
==========================================================
Header <HeaderStyle>.<default>.<default>:SIZINGMARGINS:MARGINS
file1 : 2, 0, 9, 14
file2 : 1, 1, 1, 2
Header <HeaderStyle>.HeaderItem.<default>:SIZINGMARGINS:MARGINS
file1 : 2, 3, 9, 14
file2 : 8, 8, 1, 17
Header <HeaderStyle>.HeaderItem.<default>:CONTENTMARGINS:MARGINS
file1 : 0, 0, 0, 0
file2 : 3, 0, 0, 0
Header <HeaderStyle>.HeaderItem.<default>:SIZINGTYPE:ENUM
file1 : STRETCH (1)
file2 : TILE (2)
Header <HeaderStyle>.HeaderDropDown.<default>:SIZINGMARGINS:MARGINS
file1 : 2, 0, 9, 14
file2 : 8, 8, 3, 4
Header <HeaderStyle>.HeaderDropDownFilter.<default>:SIZINGMARGINS:MARGINS
file1 : 2, 0, 9, 14
file2 : 8, 8, 3, 4
MaxNavbar::Rebar <Navbar::Rebar>.Background.<default>:SIZINGMARGINS:MARGINS
file1 : 15, 15, 1, 3
file2 : 0, 0, 0, 1
So the only changes are some margins, and Header.item images.
I already change it (to 15px height), and I adjusted margins.
But, I don't know why, Header.item still measuring 19px.
P.D.: Appears one change in Rebar, I don't know what it is. I guess it would be a mistake, 'cause there are 2 "sizingmargins" in here; and I think that there's no connection with header.item.
Thanks for your time.