Reverting to the default icon of the Trash bin

Solution 1:

when the trash icon is changed by right clicking it, Properties and clicking on icon,

the path of this newly selected icon will be saved in ~/.config/nautilus/desktop-metadata

when the icon was not changed, some of the content in this file is

[trash]
nautilus-icon-position-timestamp=1551022571
nautilus-icon-position=56,146
icon-scale=1

for example:

I have changed the trash-icon by right clicking... then the content of above mentioned file changed to

[trash]
nautilus-icon-position-timestamp=1551022571
nautilus-icon-position=56,146
icon-scale=1
custom-icon=file:///home/pratap/Pictures/Screenshot%20from%202019-02-24%2021-09-32.png

to revert the changes.. the below line need to be deleted from the file ~/.config/nautilus/desktop-metadata

custom-icon=file:///home/pratap/Pictures/Screenshot%20from%202019-02-24%2021-09-32.png

to delete the line and save the changes..run the below command, edit and save the file.

sudo -H gedit ~/.config/nautilus/desktop-metadata

Now logout and login to see the change..