I just used the plugin image upload, but the image can't show how to fix it?
what is the perfect size(dimension, solution) for a group cover? png is best data format for this image?
this is the default image, not sure what the optimal/default dimensions are.
@hollosch rather than dimension, I believe image/writing itself is more important. You can move/adjust the picture after you upload it; however how it looks on the desktop will be different from how it looks on mobile.
Here are the examples from our site:
I guess you can see the difference...