Corelle is made by Corning of USA and it is a fine corning ware product. ie it is made of glass/ceramic but is much silkier to the touch than pyrex and better than the french opal glassware.
a YouTube explanation of manufacture.
Yes there are a lot of patterns now-a-days. We have a plain white fluted design - rather like the plates my grandmother had!
We have added two modern french glassware dishes to our stock - the japanese style square ones [to keep our portions small] but they do not match the finish on the Corelle and weigh more too.