Tumblr has put out an April Fools update that includes flashing imagery of what they’re naming “Tumblecoin.” There is currently no way to disable it.
If you suffer from hallucinations or seizures, I would highly recommend not using Tumblr on your web browser today (April 1st), due to the intrusive and flashing images they have added.
here is how to disable it
right click the spinning coin and click inspect element
delete this line of code
close the inspect pane. and then dont refresh your browser or navigate to a new page or youll have to do it again. but if you plan on scrolling down your dash for a good long while this should do it.
signal boost! flashing lights give me migraines, but I know a lot of people get it a lot worse!