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good afternoon I insert images in posts when they become prominent large width of the post can someone tell me what I have to change to put the size of 150×150, ja walked into the code change as much in function.php in index.php but however that change is always great
My theme is pinboard
my website: https://www.museudelamego.pt
even though in the settings I choose thumbnail or other measure it is always great

the code of the index.php and functions.php published on the main page of the site