4 calls to path_to_theme()

bartik_preprocess_html in themes/bartik/template.php
Add body classes if certain regions have content.
garland_preprocess_html in themes/garland/template.php
Override or insert variables into the html template.
seven_preprocess_html in themes/seven/template.php
Override or insert variables into the html template.
template_preprocess in includes/theme.inc
Adds a default set of helper variables for variable processors and templates.

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