Customize loading spinner position and appereance

[danielvodnanskyextconradcom]

Screenshot

Description

This spinner (loader) cannot be customized. It's always positioned in the middle of iframe, so user on our page sometimes don't see something is happenning if the iframe is in lower part and they see just part of is (like a grey rectangle.)

We cannot apply styles on it, because they are loaded with the content itself after the spinner dissapear.

Design input

I suggest the possibility to reposition the spinner (set the top/left percent position) OR display multiple spinners OR add custom style to the spinner OR modify directly its html. Also it would be great to be able to upload custom spinner.

[rusackas]

All of the things you're asking for here could be contributed in a PR as feature additions (positioning improvements, additional classes needed for CSS, or even a customizable path in the config for a custom image, as we do in with the app logo). I'll move this to an Ideas thread, since it belongs there more so than as an Issue/bug.