Tell us what you are trying to do?
I have added a custom view search spinner, but it is not displaying on the front end. I tried a gif and svg format. What have I done wrong?
Is there any documentation that you are following?
No
There is really limited possibilities with custom loader images and you will have to add few custom CSS code to adjust its display.
I suggest you should upload GIF loader image and try to adjust its size by adding custom CSS code. Please let me know if you need help with that. Please first try to upload the GIF loader image.