-gap.jpg
suffix.
Posts show the pregenareted small size jpeg file first, your visitors don't need to wait for download the huge animation. Play animation after they click on the image or after your whole page has downloaded. It depends on your setting:
nogap
class/wp-content/plugins/gif-animation-preview/
directoryAnimation loads after clicking at preview on mobile browsers but loads automatically on desktops.
No. It can't be sure you use the preview image somewhere else. If you don't need preview anymore you need to delete it by yourself from the media directory.
No, it only generated clean image with separated play button on the top.
No, everything is happening on the fly. Once you deactivate, you get back your original posts (fyi it stores your settings in wp_options table, as usual).
Yes, you need to add gapStart();
to the callback area on admin.
Yes, open wp-content/themes/Aruna/functions.php
with a text editor and add $teo_nolazy = true;
line after <?php
(second line) for turn off template's lazy load function. Go to plugin's admin and turn on metadata overwrite.
Yes, add nogap
to image class attribute and plugin will not work.