I am using Cinnamon 2.4.5 and whenever I go into System Settings > Applets or Extensions or Desklets and go into the tab that allows me to view and install online applets, extensions, or desklets, the mouse cursor changes from my default cursor to a very weird looking one.
I would post a screenshot but whenever I do take a screenshot, the pointer is of the cursor that I like and not the strange one that only appears in the places that I listed above. The pointer is rather skinny and is tilted id say 45 degrees to the right.
This is still occurring on the latest Cinnamon release.
What cursor theme are you using? Also you might try taking a photo of your computer monitor.
@raidermax, is this still an issue for you in Cinnamon 3.0.x?
Hello, everybody.
@Vahan86: This happens to me too. But I don't think that it is a problem with Cinnamon. I used to see this _strange_ cursors in certain parts of XFCE too. It seems to only happen with cursor themes created for KDE.
This image is of the Capitaine cursor theme on the Available applets (online) section:

And this is an image of the Breeze-AIO cursor theme (don't remember where I got this theme) on the same window:

When the correct cursor should look like this:

With the Adwaita cursor theme, the Available applets (online) window displays the correct cursor. My guess is that there must be a missing file inside the cursors folder of the cursor themes that we are using. This doesn't bother me that much, so I never investigated the issue further.
@Odyseus Thanks for the additional info.
@Odyseus, thanks for info.
I investigated this issue a little bit.
I used the Capitaine cursor theme. The issue happens, because the cursor theme is missing a cursor icon called arrow.
So to fix this issue, you need to create a symbolic link arrow, which points to the normal cursor (sometimes called default or left_ptr) in your custom cursor theme.
Hello, everybody.
I can confirm @NikoKrause's findings ( 馃憤 ). By simply adding the arrow file to the icon theme, the Spices window will start to use the correct icon.
Just as a side note, the new design of the Spices window introduced by this pull request will not have the mouse cursor problem, even with the arrow file missing on the icon theme.
I've updated Capitaine cursors to include an 'arrow' cursor, as per @NikoKrause's request.
@keeferrourke Thanks
@Odyseus I think you are right. I assume it's because of the line:
self.gm_treeview.get_window().set_cursor(Gdk.Cursor.new(Gdk.CursorType.ARROW))
in the ExtensionCore.py file.
Most helpful comment
Hello, everybody.
@Vahan86: This happens to me too. But I don't think that it is a problem with Cinnamon. I used to see this _strange_ cursors in certain parts of XFCE too. It seems to only happen with cursor themes created for KDE.
This image is of the Capitaine cursor theme on the Available applets (online) section:
And this is an image of the Breeze-AIO cursor theme (don't remember where I got this theme) on the same window:
When the correct cursor should look like this:
With the Adwaita cursor theme, the Available applets (online) window displays the correct cursor. My guess is that there must be a missing file inside the cursors folder of the cursor themes that we are using. This doesn't bother me that much, so I never investigated the issue further.