This effect was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
Just a simple circle maker. You can have solid circles, line circles, and transparent backgrounds. So, this filter can be used with or without an imported image.
If your circle doesn't show up, turn the 'Circle Opacity' slider down (left). If all three checkboxes are checked, there will be no part of the imported image showing through.
This filter was NOT designed to use the 'size, pixels' slider. 'Next Variant will work fine.
Craig Kraellin Walters circle solid fill line thickness corners size color opacity transparent ring background checkbox