emblem-web.png:                                 Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz
emblem-web2.png:                                Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz (modified)
emblem-system.ico:                              Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz
emblem-art.ico:                                 Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz
emblem-art2.ico:                                Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz
emblem-documents.ico:                           Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz
edit-web-search.png:                            Oxygen Icon Pack - https://github.com/KDE/oxygen-icons
web-browser.png:                                Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtz
email.png:                                      Crystal Project - Everaldo Coelho - https://www.iconfinder.com/iconsets/crystalproject
application-vnd.ms-word.svg:                    KDE 1.2 Icon Pack
application-vnd.wordperfect.png:                Oxygen Icon Pack - https://github.com/KDE/oxygen-icons
application-spreadsheet.svg: KDE 1.2            KDE 1.2 Icon Pack
icon_browser.png                                Crystal Project - Everaldo Coelho - https://www.iconfinder.com/iconsets/crystalproject

icon_email.png                                  Oxygen Icon Pack - https://github.com/KDE/oxygen-icons
icon_email_1.png                                Based on: Oxygen Icon Pack - https://github.com/KDE/oxygen-icons
icon_email_2.png                                Based on: Oxygen Icon Pack - https://github.com/KDE/oxygen-icons
icon_email_3.png                                Based on: Oxygen Icon Pack - https://github.com/KDE/oxygen-icons
icon_email_4.png                                Based on: Crystal Project - Everaldo Coelho - https://www.iconfinder.com/iconsets/crystalproject
icon_web_browser.png                            Based on: Human O2 Icons - Oliver-scholtz Oliver Scholtz - https://www.softicons.com/system-icons/human-o2-icons-by-oliver-scholtzf
icon_web_browser_2.png                          Based on Crystal Project - Everaldo Coelho - https://www.iconfinder.com/iconsets/crystalproject
icon_web_browser_3.png                          Based on Crystal Project - Everaldo Coelho - https://www.iconfinder.com/iconsets/crystalproject

libreoffice-base.png                            Oxylite Icon Pack - https://github.com/mx-2/oxylite-icon-theme/
libreoffice-calc.png                            Oxylite Icon Pack - https://github.com/mx-2/oxylite-icon-theme/
libreoffice-draw.png                            Oxylite Icon Pack - https://github.com/mx-2/oxylite-icon-theme/
libreoffice-impress.png                         Oxylite Icon Pack - https://github.com/mx-2/oxylite-icon-theme/
libreoffice-math.png                            Oxylite Icon Pack - https://github.com/mx-2/oxylite-icon-theme/
libreoffice-writer.png                          Oxylite Icon Pack - https://github.com/mx-2/oxylite-icon-theme/

user-desktop.png                                UKUI Icon Pack