The "open as root" may need to be installed- not coming with default.
sudo apt install nautilus-admin
Once that is installed, you should then have the "Open as root" option on right click.
In Nautilus File Manager (Files), click "Other Locations" in the left pane.
In the right pane, click "computer"
That will take you to Root. From here, you can find /usr and follow the tree.
This is a ONE step at a time undertaking . . . I did install the nautilus-admin, did right click downloaded file - Open as Administrator, which took me to DMZ-Red folder. Copied, but when I clicked on Other locations -> Computer -> Usr -> share -> icons I could not Paste the copy into that folder. Got this error message -
Folder DMZ-Red cannot be copied because you do not have permissions to create it in the destination.
Getting a bit scared now - did the (sudo -i) command and after password did (nautilus) which came back -
** (org.gnome.Nautilus:3261) ** WARNING ** : 12:35:46.030 Unable to get contents of the bookmarks file: Error opening file/root/.gtk-bookmarks: No such file or directory
Just go there and choose the Cinnamon DE from the left hand menu then choose cursor .... icons ..... themes and wallpapers .... you'll spend many happy hours customizing you Cinnamon DE ..... also check out the various themes and icon sets that Storm and Aravisian have made .....
That maybe getting a little ahead of ourselves as you are only looking for a cursor setting now ..... but will be tons of fun later on ......
As noted by @Storm , this is harmless. What it means is that you moved the directory for File Manager into Root, but your gtk-bookmarks are not saved in Root - they are saved in ~Home. Since it could not find them (being in Root instead of Home), it reported that it could not find them.
You may be using a Local theme instead of a system theme...
No, you should be able to close the active windows; then launching the file manager will default back to the user directory and permissions. If this does not happen, a minimized active window may be the cause.
No change in which regard?
If you rebooted, then you are no longer activating the file manager with root privileges. In order to perform actions in Root, you must elevate to Root.
First I want to say how very grateful I am to all who have been so gracious with their assistance. This forum is truly a most remarkable collection of knowledgeable people! Yet the sad fact is that I have never been, nor ever likely to be, anywhere near as knowledgeable and capable as you all are.
I am now a bit confused and pulling back on this 'quest' to have my mouse pointer as it was. I am very happy that Aravisian helped me to increase its size, but pushing to have it red as well seems to have opened a can of worms that I am not ready to deal with. So I will mark this closed (so many deserve the Solution check!). Again, thanks everyone.
PS this seems to be an example of hurdles that all Linux 'flavors' face when it comes to challenging dominate Apple and Microsoft.
Reading back through this thread (from post #7), did Jain actually achieve installation of Cinnamon DE, or did something go adrift at that point?
I'm wondering if that is creating a problem.
I'm not really interested in having a D E if I'm not going to use it. If my laptop continues to act wonky I'll buck up and track that down.
A thought occur ed to me - as I tried to download the 'red' color into the icons folder I noticed that there was already a 'Zorin' Red (light and dark) in that folder. I wonder about if the cursor (mouse pointer) couldn't have an option to select 'color' from what is already available? Surely only black and white (with black outline) aren't the only colors?