Hi,
because you are mentioning section header icons I presumed that you have Revelance theme, so I moved thread there, as that is specific only for Revelance.
We will add this list with icons in documentation and update theme today, but here is complete list of icon names for headers:
section-add-to-list
section-adjust
section-air
section-airplane
section-archive
section-arrow
section-arrow-down
section-arrow-down2
section-arrow-down3
section-arrow-down4
section-arrow-down5
section-arrow-down6
section-arrow-down7
section-arrow-down8
section-arrow-left
section-arrow-left2
section-arrow-left3
section-arrow-left4
section-arrow-left5
section-arrow-left6
section-arrow-left7
section-arrow-left8
section-arrow-right
section-arrow-right2
section-arrow-right3
section-arrow-right4
section-arrow-right5
section-arrow-right6
section-arrow-right7
section-arrow-up
section-arrow-up-upload
section-arrow-up2
section-arrow-up3
section-arrow-up4
section-arrow-up5
section-arrow-up6
section-arrow-up7
section-arrow2
section-back
section-bag
section-bars
section-battery
section-behance
section-bell
section-blocked
section-bolt
section-book
section-book2
section-bookmark
section-bookmarks
section-box
section-briefcase
section-brogress-1
section-browser
section-brush
section-bucket
section-calendar
section-camera
section-cart
section-cc
section-cc-by
section-cc-nc
section-cc-nc-eu
section-cc-nc-jp
section-cc-nd
section-cc-pd
section-cc-sa
section-cc-share
section-cc-share2
section-cc-zero
section-ccw
section-cd
section-chat
section-checkmark
section-circles
section-clipboard
section-clock
section-cloud
section-code
section-cog
section-comment
section-compass
section-cone
section-creditcard
section-cross
section-cross2
section-cross3
section-cup
section-cw
section-cycle
section-danielbruce
section-danielbruce2
section-database
section-directions
section-disk
section-docs
section-document
section-dot
section-dots
section-download
section-drawer
section-dribbble
section-dribbble2
section-drive
section-dropbox
section-droplet
section-droplets
section-earth
section-ellipsis
section-erase
section-evernote
section-export
section-eye
section-facebook
section-facebook2
section-facebook3
section-feather
section-first
section-flag
section-flashlight
section-flattr
section-flickr
section-flickr2
section-flow-branch
section-flow-cascade
section-flow-line
section-flow-parallel
section-flow-tree
section-folder
section-forward
section-gauge
section-github
section-github2
section-googleplus
section-googleplus2
section-graduation
section-graph
section-heart
section-heart2
section-help
section-history
section-hourglass
section-house
section-infinity
section-info
section-info2
section-instagram
section-install
section-key
section-keyboard
section-landscape
section-language
section-last
section-lastfm
section-lastfm2
section-layout
section-leaf
section-lifebuoy
section-light-bulb
section-link
section-linkedin
section-linkedin2
section-list
section-list2
section-location
section-location2
section-lock
section-lock-open
section-login
section-logout
section-loop
section-magnet
section-mail
section-map
section-megaphone
section-menu
section-microphone
section-minus
section-minus2
section-minus3
section-mixi
section-mobile
section-moon
section-mouse
section-music
section-music2
section-music3
section-mute
section-network
section-new
section-newspaper
section-next
section-palette
section-paperclip
section-paperplane
section-pause
section-paypal
section-pencil
section-phone
section-picasa
section-pictures
section-pie
section-pinterest
section-pinterest2
section-play
section-plus
section-plus2
section-plus3
section-popup
section-previous
section-printer
section-progress-0
section-progress-2
section-progress-3
section-publish
section-qq
section-question
section-quote
section-rdio
section-rdio2
section-record
section-renren
section-reply
section-reply-all
section-resize-enlarge
section-resize-shrink
section-retweet
section-rocket
section-rss
section-screen
section-search
section-sharable
section-share
section-shuffle
section-signal
section-sina-weibo
section-skype
section-skype2
section-smashing
section-sound
section-soundcloud
section-spotify
section-spotify2
section-star
section-star2
section-statistics
section-stop
section-stumbleupon
section-stumbleupon2
section-suitcase
section-sun
section-sun2
section-switch
section-tag
section-target
section-text
section-text2
section-thermometer
section-thumbsdown
section-thumbsup
section-thunder
section-ticket
section-tools
section-trash
section-trophy
section-tumblr
section-tumblr2
section-twitter
section-twitter2
section-uniE66E
section-uniE6D8
section-upload
section-upload2
section-user
section-user-add
section-users
section-vcard
section-video
section-vimeo
section-vimeo2
section-vk
section-voicemail
section-volume
section-warning
ab-themes.
