I've not found any way to center image for my post. And, good chances are - there's no way to do this. So may be we should have extended options for images?
- Text positioning
- Horizontal alignment (left/center/right)
Also, I didn't found any usage for "image description", only as "no image" place for browsers where images are turned off / not supported. No other usages - but it is such a rare case when browser don't support images. So may be we'll use that for image title as it is? (that is - when mouse pointer is on the image, the description will pop-up as a hint).
Example - this answer - there are many pictures there, I've entered proper description for each case (so it will be easy to realize what is image about, without scrolling to text above it) - so it would be great if that description will appear when mouse pointer is on the picture. It will also be great if pictures will be centered or the text of the post, which is related to picture, will be at the left/right side of it.
So may be such extension to image formatting should be added?
May be it's a duplicate, but I wasn't able to find exactly same question. If it is - then, please, correct me.