Hot answers tagged effects
It's a subtle texture. They were all the rage back in 2010-2013 when "artisan" styling, Victoriana and "skeumorphism" were in vogue, and everything looked like this: Here's an article from 2011 about what was then an exciting new trend... You can find free-to-use things like this at http://subtlepatterns.com/ and http://www.transparenttextures.com/ To ...
Some effects like blur can not be applied on indexed formats. You will have to change the image mode to RGB first. In Gimp this is done by selecting Image > Mode > RGB from the top menu bar.
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