nextcloud
background image should be cached until a login process has been finshed
After activating that app I realized that a grey screen is shown for a short moment before the downloaded picture is displayed. I think it might be better to show the previous picture before replacing it by a new one, to prevent grey screens. Additionally the picture changes really on every page refresh/reload. This is a little bit confusing/disturbing e.g. when you have the Two Factor U2F app activated and a different background picture is display right after you've entered your credentials and waiting for the confirmation of the U2F token. It would be nice if a background picture is cached at least as long as it takes to finish o single login process.
So there's two points here:
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About the grey screen I disagree. It would be way more jarring to display the previous image for a second and then switch to the new one. The current grey is very neutral for that purpose.
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And about it really switching every time: Well, it is supposed to be a showcase of pictures. :) And when do you switch, when do you not? Time limit, interactions, clicks? There are also other interstitials like when you click links in the Mail app or update Nextcloud.
This is related to "Request: Pull image(s) in advance with cronjob to have it ready uppon loading the page" #7
I really like the concept of this app. However, I disabled it after a few hours of usage because I found it a bit annoying that the image changed every time you opened a new page, or switched from one app to another. For people like me (perhaps I am a minority...), it would be great to have an option like "Use a single image per login session", or "Reload a new image every X minutes". I agree with the statement above the using a different image for the login and 2FA is perhaps the worst offender in this regard. Otherwise, its great!
I agree with @MarkWieczorek, changing the image every page load is the only negative point i have about this app.
