bootstrap_breakpoints_array() to get array with bootstrap grid breakpoints, get_post_thumbnail_field() to get post thumbnail metadata, added img caption support to get_picture_tag, get_responsive_background() to get <style> tag with css media queries with responsive background sizes,
bootstrap_breakpoints_array() to get array with bootstrap grid breakpoints,
get_post_thumbnail_field() to get post thumbnail metadata,
added img caption support to get_picture_tag,
get_responsive_background() to get <style> tag with css media queries with responsive background sizes,

LechDutkiewicz/serfenta_theme,LechDutkiewicz/serfenta_theme