MarsSeed [1] filed a deletion request for kde-thumbnailer-blender [2]: Abandoned, discontinued thumbnailer module from 2016 for KDE4's Dolphin file manager.
The KDE4 desktop environment and its corresponding legacy version of the Dolphin file manager are no longer available in Arch/AUR repos. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/kde-thumbnailer-blender/
