In case that ever gets deleted, here is the list provided there:
- 'logo-crystal'
- 'create-new'
- 'trash'
- 'search'
- 'right-triangle'
- 'document'
- 'folder'
- 'pencil'
- 'left-arrow'
- 'right-arrow'
- 'three-horizontal-bars'
- 'dot-network'
- 'audio-file'
- 'image-file'
- 'pdf-file'
- 'gear'
- 'documents'
- 'blocks'
- 'go-to-file'
- 'presentation'
- 'cross-in-box'
- 'microphone'
- 'microphone-filled'
- 'two-columns'
- 'link'
- 'popup-open'
- 'checkmark'
- 'hashtag'
- 'left-arrow-with-tail'
- 'right-arrow-with-tail'
- 'lines-of-text'
- 'vertical-three-dots'
- 'pin'
- 'magnifying-glass'
- 'info'
- 'horizontal-split'
- 'vertical-split'
- 'calendar-with-checkmark'
- 'sheets-in-box'
- 'up-and-down-arrows'
- 'broken-link'
- 'cross'
- 'any-key'
- 'reset'
- 'star'
- 'crossed-star'
- 'dice'
- 'filled-pin'
- 'enter'
- 'help'
- 'vault'
- 'open-vault'
- 'paper-plane'
- 'bullet-list'
- 'uppercase-lowercase-a'
- 'star-list'
- 'expand-vertically'
- 'languages'
- 'switch'
- 'pane-layout'
- 'install'
New list (from 2021.04.11, user SV on Discord):
- "any-key"
- "audio-file"
- "blocks"
- "bold-glyph"
- "bracket-glyph"
- "broken-link"
- "bullet-list"
- "bullet-list-glyph"
- "calendar-with-checkmark"
- "check-in-circle"
- "check-small"
- "checkbox-glyph"
- "checkmark"
- "clock"
- "cloud"
- "code-glyph"
- "create-new"
- "cross"
- "cross-in-box"
- "crossed-star"
- "csv"
- "deleteColumn"
- "deleteRow"
- "dice"
- "document"
- "documents"
- "dot-network"
- "double-down-arrow-glyph"
- "double-up-arrow-glyph"
- "down-arrow-with-tail"
- "down-chevron-glyph"
- "enter"
- "exit-fullscreen"
- "expand-vertically"
- "filled-pin"
- "folder"
- "formula"
- "forward-arrow"
- "fullscreen"
- "gear"
- "go-to-file"
- "hashtag"
- "heading-glyph"
- "help"
- "highlight-glyph"
- "horizontal-split"
- "image-file"
- "image-glyph"
- "indent-glyph"
- "info"
- "insertColumn"
- "insertRow"
- "install"
- "italic-glyph"
- "keyboard-glyph"
- "languages"
- "left-arrow"
- "left-arrow-with-tail"
- "left-chevron-glyph"
- "lines-of-text"
- "link"
- "link-glyph"
- "logo-crystal"
- "magnifying-glass"
- "microphone"
- "microphone-filled"
- "minus-with-circle"
- "moveColumnLeft"
- "moveColumnRight"
- "moveRowDown"
- "moveRowUp"
- "note-glyph"
- "number-list-glyph"
- "open-vault"
- "pane-layout"
- "paper-plane"
- "paused"
- "pdf-file"
- "pencil"
- "percent-sign-glyph"
- "pin"
- "plus-with-circle"
- "popup-open"
- "presentation"
- "price-tag-glyph"
- "quote-glyph"
- "redo-glyph"
- "reset"
- "right-arrow"
- "right-arrow-with-tail"
- "right-chevron-glyph"
- "right-triangle"
- "run-command"
- "search"
- "sheets-in-box"
- "sortAsc"
- "sortDesc"
- "spreadsheet"
- "stacked-levels"
- "star"
- "star-list"
- "strikethrough-glyph"
- "switch"
- "sync"
- "sync-small"
- "tag-glyph"
- "three-horizontal-bars"
- "trash"
- "undo-glyph"
- "unindent-glyph"
- "up-and-down-arrows"
- "up-arrow-with-tail"
- "up-chevron-glyph"
- "uppercase-lowercase-a"
- "vault"
- "vertical-split"
- "vertical-three-dots"
- "wrench-screwdriver-glyph"
Somewhat related: