The theme was designed for Liferay 6.0 and was following its look.
Liferay 6.0 is no longer officially supported by Vaadin 8.
Change-Id: I79e8ecd6674b1dce2424121d4c298b69d3f932d4
Sorting indicator no longer overlaps the column header in tables. #5066 and #2681
The sorting indicator is now placed in its own div element instead of being added as a background picture for the existing header cell element.
svn changeset:16130/svn branch:6.5