I have made a custom newsletter templaet and am now transfering it into a site template ingle-newsletetr.html I could use for preview.
So I am areplacing all PLACEHOLDERS with their PHP equivbalents.
There is one thing I dont know though: the edit give option to place the featured image thumbnail in several dimensions.
I am not sure how this information is stored (I dont find in postmetas?) so how could I replicate it in PHP in my template?