in tools/test-gui/linux/main.cpp [49:325]
static std::vector<const char *> iconList({
"application-exit",
"appointment-new",
"call-start",
"call-stop",
"contact-new",
"document-new",
"document-open",
"document-open-recent",
"document-page-setup",
"document-print",
"document-print-preview",
"document-properties",
"document-revert",
"document-save",
"document-save-as",
"document-send",
"edit-clear",
"edit-copy",
"edit-cut",
"edit-delete",
"edit-find",
"edit-find-replace",
"edit-paste",
"edit-redo",
"edit-select-all",
"edit-undo",
"folder-new",
"format-indent-less",
"format-indent-more",
"format-justify-center",
"format-justify-fill",
"format-justify-left",
"format-justify-right",
"format-text-direction-ltr",
"format-text-direction-rtl",
"format-text-bold",
"format-text-italic",
"format-text-underline",
"format-text-strikethrough",
"go-bottom",
"go-down",
"go-first",
"go-home",
"go-jump",
"go-last",
"go-next",
"go-previous",
"go-top",
"go-up",
"help-about",
"help-contents",
"help-faq",
"insert-image",
"insert-link",
"insert-object",
"insert-text",
"list-add",
"list-remove",
"mail-forward",
"mail-mark-important",
"mail-mark-junk",
"mail-mark-notjunk",
"mail-mark-read",
"mail-mark-unread",
"mail-message-new",
"mail-reply-all",
"mail-reply-sender",
"mail-send",
"mail-send-receive",
"media-eject",
"media-playback-pause",
"media-playback-start",
"media-playback-stop",
"media-record",
"media-seek-backward",
"media-seek-forward",
"media-skip-backward",
"media-skip-forward",
"object-flip-horizontal",
"object-flip-vertical",
"object-rotate-left",
"object-rotate-right",
"process-stop",
"system-lock-screen",
"system-log-out",
"system-run",
"system-search",
"system-reboot",
"system-shutdown",
"tools-check-spelling",
"view-fullscreen",
"view-refresh",
"view-restore",
"view-sort-ascending",
"view-sort-descending",
"window-close",
"window-new",
"zoom-fit-best",
"zoom-in",
"zoom-original",
"zoom-out",
"accessories-character-map",
"accessories-dictionary",
"accessories-text-editor",
"help-browser",
"multimedia-volume-control",
"preferences-desktop-accessibility",
"preferences-desktop-font",
"preferences-desktop-keyboard",
"preferences-desktop-locale",
"preferences-desktop-multimedia",
"preferences-desktop-screensaver",
"preferences-desktop-theme",
"preferences-desktop-wallpaper",
"system-file-manager",
"system-software-install",
"system-software-update",
"utilities-system-monitor",
"utilities-terminal",
"applications-development",
"applications-engineering",
"applications-games",
"applications-graphics",
"applications-internet",
"applications-multimedia",
"applications-office",
"applications-other",
"applications-science",
"applications-system",
"applications-utilities",
"preferences-desktop",
"preferences-desktop-peripherals",
"preferences-desktop-personal",
"preferences-other",
"preferences-system",
"preferences-system-network",
"system-help",
"audio-input-microphone",
"battery",
"camera-photo",
"camera-video",
"camera-web",
"computer",
"drive-harddisk",
"drive-optical",
"drive-removable-media",
"input-gaming",
"input-keyboard",
"input-mouse",
"input-tablet",
"media-flash",
"media-floppy",
"media-optical",
"media-tape",
"modem",
"multimedia-player",
"network-wired",
"network-wireless",
"pda",
"phone",
"printer",
"scanner",
"video-display",
"emblem-documents",
"emblem-downloads",
"emblem-favorite",
"emblem-important",
"emblem-mail",
"emblem-photos",
"emblem-readonly",
"emblem-shared",
"emblem-symbolic-link",
"emblem-synchronized",
"emblem-system",
"emblem-unreadable",
"face-angry",
"face-cool",
"face-crying",
"face-devilish",
"face-embarrassed",
"face-kiss",
"face-laugh",
"face-monkey",
"face-plain",
"face-raspberry",
"face-sad",
"face-sick",
"face-smile",
"face-smile-big",
"face-smirk",
"face-surprise",
"face-tired",
"face-uncertain",
"face-wink",
"face-worried",
"audio-x-generic",
"font-x-generic",
"image-x-generic",
"package-x-generic",
"text-html",
"text-x-generic",
"text-x-generic-template",
"text-x-script",
"video-x-generic",
"x-office-address-book",
"x-office-calendar",
"x-office-document",
"x-office-presentation",
"x-office-spreadsheet",
"folder-remote",
"network-server",
"network-workgroup",
"start-here",
"user-bookmarks",
"user-desktop",
"user-home",
"user-trash",
"appointment-soon",
"audio-volume-high",
"audio-volume-low",
"audio-volume-medium",
"audio-volume-muted",
"battery-caution",
"battery-low",
"dialog-error",
"dialog-information",
"dialog-password",
"dialog-question",
"dialog-warning",
"folder-drag-accept",
"folder-open",
"folder-visiting",
"image-loading",
"image-missing",
"mail-attachment",
"mail-unread",
"mail-read",
"mail-replied",
"mail-signed",
"mail-signed-verified",
"media-playlist-repeat",
"media-playlist-shuffle",
"network-error",
"network-idle",
"network-offline",
"network-receive",
"network-transmit",
"network-transmit-receive",
"printer-error",
"printer-printing",
"security-high",
"security-medium",
"security-low",
"software-update-available",
"software-update-urgent",
"sync-error",
"sync-synchronizing",
"task-due",
"task-past-due",
"user-available",
"user-away",
"user-idle",
"user-offline",
"user-trash-full",
"weather-clear",
"weather-clear-night",
"weather-few-clouds",
"weather-few-clouds-night",
"weather-fog",
"weather-overcast",
"weather-severe-alert",
"weather-showers",
"weather-showers-scattered",
"weather-snow",
"weather-storm"
});