The Hamburger icon is just not what it should be, so I went shopping for icons and brought back... a whole list of groceries for all the possible buttons on the header bar.
I hope this will inspire the discussion about what icon to choose for each. Icons roughly in the order of my preference. Colors are arbitrarily chosen by fontawesome.com.
=== Left-side buttons ===
==== Left 1. Table of contents ====
In case it becomes a tab on the collapsible sidebar.
|{F31519040,width=50} [[ https://thenounproject.com/term/list/162001/ | source ]] |{F31519035,width=50} [[ https://thenounproject.com/term/list/2835/ | source ]] |{F31519081,width=50} [[ https://thenounproject.com/term/toc/1237031/ | source ]] |{F31519224,width=50} [[ https://fontawesome.com/v3.2.1/icon/list-ul | source ]] |{F31519039,width=50} [[ https://fontawesome.com/v3.2.1/icon/list | source ]] |{F31519038,width=50} [[ https://thenounproject.com/term/table-of-contents/121187/ | source ]] |{F31519037,width=50} [[ https://thenounproject.com/term/page/1944669/ | source ]]
NonFree https://www.iconfinder.com/icons/3233423/contents_list_table_of_contents_text_icon
NonFree https://www.iconfinder.com/icons/230367/book_bookmark_bookmarks_contents_favorites_icon
==== Left 2. Site navigation ====
|{F31519095,width=50} [[ https://thenounproject.com/term/navigate/22262/ | source ]] |{F31519091,width=50} [[ https://thenounproject.com/term/globe/3025114/ | source ]] |{F31519093,width=50} [[ https://thenounproject.com/term/globe/1109009/ | source ]] |{F31519094,width=50} [[ https://thenounproject.com/term/globe/923375/ | source ]] |{F31519092,width=50} [[ https://thenounproject.com/term/sitemap/487664/ | source ]] |{F31519090,width=50} [[ https://thenounproject.com/term/sitemap/2009656/ | source ]] |{F31519103,width=50} [[ https://thenounproject.com/term/sitemap/2795374/ | source ]] |{F31519105,width=50} [[ https://thenounproject.com/term/list/11515/ | source ]] |{F31519107,width=50} [[ https://fontawesome.com/v3.2.1/icon/sitemap | source ]]
Personal preference: Wikiglobe with arrow below
==== Left 3. Article tools / editing ====
|{F31519112,width=50} [[ https://thenounproject.com/term/document/2127108/ | source ]] |{F31519111,width=50} [[ https://thenounproject.com/term/article/2109023/ | source ]] |{F31519113,width=50} [[ https://thenounproject.com/term/file-settings/1084997/ | source ]] |{F31519118,width=50} [[ https://fontawesome.com/icons/file-alt | source ]]
==== Left 4. Bookmarks ====
|{F31519120,width=50} [[ https://fontawesome.com/icons/bookmark | source ]]
=== Right-side buttons ===
==== Right 1. Alerts ====
Mentions, direct messages, reverts.
|{F31519232,width=50} [[ https://fontawesome.com/icons/bell | source ]] |{F31519142,width=50} [[ https://fontawesome.com/icons/comments | source ]] |{F31519140,width=50} [[ https://thenounproject.com/term/messages/738682/ | source ]] |{F31519141,width=50} [[ https://fontawesome.com/icons/envelope-open-text | source ]] |{F31519145,width=50} [[ https://thenounproject.com/term/envelope-open/2811249/5,width=50} [[ https://thenounproject.com/term/envelope-open/2811249/ | source ]] |{F31519141,width=50} [[ https://fontawesome.com/icons/envelope-open-text | source ]] |{F31519144,width=50} [[ https://fontawesome.com/icons/envelope | source ]] |{F31519143,width=50} [[ https://fontawesome.com/icons/envelope-square | source ]]
==== Right 2. Notifications ====
Thanks, badges. The standardcurrent icon in Echo is a UTP socket?
| [UTP] |{F31519192,width=50} [[ https://fontawesome.com/icons/history | source ]] |{F31519193,width=50} [[ https://fontawesome.com/icons/scroll | source ]]
==== Right 3. Watchlist ====
|{F31519218,width=50} [[ https://fontawesome.com/icons/star | source ]]
==== Right 4. User contributions ====
List icon with small user icon:
|{F31519039,width=50} [[ https://fontawesome.com/v3.2.1/icon/list | source ]] |{F31519217,width=50} in| [[ https://fontawesome.com/icons/user | small ]] ]] {F31519217,width=25}
|{F31519192,width=50} [[ https://fontawesome.com/icons/history | source ]] |{F31519217,width=50} in| [[ https://fontawesome.com/icons/user | small ]] ]] {F31519217,width=25}
==== Right 5. Skin settings ====
|{F31519200,width=50} [[ https://fontawesome.com/icons/sliders-h | source ]] |{F31519201,width=50} [[ https://fontawesome.com/icons/cog | source ]] |{F31519199,width=50} [[ https://fontawesome.com/icons/toggle-on | source ]]
==== Right 6. User menu ====
|{F31519217,width=50} [[ https://fontawesome.com/icons/user | source ]]
Consider not displaying the user name. Showing the username is useful on shared computers and for sockpuppeteers. Hiding the username is good for making screenshots that have no privacy concerns.