Has anyone ever seen anything like this before? I'm more asking out of interest that for help diagnosing an issue. The plant seems to be doing fine but two of its leaves are stained white ... see photo. The leaves have had the discolouration since they first started to form and it has grown in size as the leaves have grown. The photo doesn't show it all that well but the most white part in the second photo is completely bright opaque white in person. Cheers.