Quality and sizing of thumbnail images need improvement.

Tall and wide images in Wikidata are cropped too much in the square thumbnails (pad with white space?), e.g., Electric Bass Guitar (Q64166304](https://www.wikidata.org/wiki/Q64166304)) and Pochetter ([Q1094813](https://www.wikidata.org/wiki/Q1094813)).

Some seems to be scaled wrongly, for example: Ab Clarinet ([Q961470](https://www.wikidata.org/wiki/Q961470)) and Batyphone ([Q36973404](https://www.wikidata.org/wiki/Q36973404)) (the original is not great.)

Some are missing: Adungu ([Q3605859](https://www.wikidata.org/wiki/Q3605859)), Superbone ([Q2786107](https://www.wikidata.org/wiki/Q2786107)), Harmoneon ([Q3127548](https://www.wikidata.org/wiki/Q3127548))