issue: https://github.com/goldendict/goldendict/issues/1441

http://tango.freedesktop.org/Tango_Desktop_Project GPLv3
list:
internet.svg
home.svg
configure.svg
fileopen.svg
addtab.svg
wizard.svg
fulltext
text2speech
reload 
icons/print.svg
icons/programs.svg
error
star.svg
star_blue.svg
network.svg
hotkeys
previous
next
advanced
windows-list
filesave
playsound_color
interface
webdict
transliteration
closetab
folder
reload
menu.svg

https://packages.debian.org/bullseye/gnome-icon-theme GPLv3
lists:
clear

https://commons.wikimedia.org/wiki/File:Accessories-dictionary.svg
lists:
icon32_sdict.svg 


https://freesvg.org/pushpin-vector-image  public domain 
lists:
pushbin


https://commons.wikimedia.org/wiki/File:Arrow_bottom_svg.svg  license:public domain
lists:
1downarrow


these two icons from sertoli @  https://forum.freemdict.com/u/sertoli/summary
playsound.png
playsound_full.png


LGPL
icon32_zoombase.png https://icons.iconarchive.com/icons/oxygen-icons.org/oxygen/128/Actions-page-zoom-icon.png
icon32_zoomout.png https://icons.iconarchive.com/icons/oxygen-icons.org/oxygen/128/Actions-zoom-out-icon.png
icon32_zoomin.png https://icons.iconarchive.com/icons/oxygen-icons.org/oxygen/128/Actions-zoom-in-icon.png
reload.png https://iconarchive.com/show/oxygen-icons-by-oxygen-icons.org/Actions-edit-redo-icon.html
advanced.png https://icons.iconarchive.com/icons/oxygen-icons.org/oxygen/128/Actions-system-run-icon.png
sources.png https://icons.iconarchive.com/icons/oxygen-icons.org/oxygen/128/Apps-plasma-icon.png

book.svg https://github.com/johnfactotum/foliate


lingualibre.svg https://en.m.wikipedia.org/wiki/File:Lingualibre-logo-no-text.svg


Apache License Version 2.0
1downarrow.svg
system-search.svg
Modified from  https://github.com/google/material-design-icons

add-anki-icon.svg   MIT license
https://www.svgrepo.com/svg/435992/add-card