In what directory(s) are the default ubuntu icons located?
Icons are located in /usr/share/icons
More specifically, the default icons that the file browser is using (currently up to version 15.04) are placed in folder:
/usr/share/icons/Humanity/places/48
The icon for the download folder is folder-download.svg
.
"Icons are located in /usr/share/icons
"
This answer is only partially correct. If one does a locate *.png
on the command line,
many locations for icons will be found. For example, /usr/share/unity/icons
,
/usr/share/themes/Radiance/gtk-3.0/assets/switch-button-off.png
So a more generalized answer would be... in various directories under /usr/share
I don't know what a "downloads bookmark" is, so I can't address your specific issue any further.