Why do Navarino paintings show the later Ottoman flag?

Why do paintings of Navarino often show the Ottoman flag adopted after the battle?

Many were completed after 1844 and used the newly recognizable standard flag instead of reconstructing every 1827 ensign.

A viewer notices that many paintings show the familiar later Ottoman flag at Navarino. Works completed after the design's official adoption in 1844 could favor immediate recognition over exact 1827 detail. Earlier paintings, including the example attributed to Ambroise Louis Garneray, show different or less clearly standardized ensigns. The answer turns a flag discrepancy into a practical warning that a battle painting's completion date matters when treating it as evidence.