[TYPO3] thumbnail scaling problem

[horace]

Not easy for beginner. You have to read about maxW and maxH in
TSRef/IMG_RESOURCE. There is a recipe there. Next you'll need to
modify the TS that renders these images. You can find it in the TS
object browser, look in tt_content entry and deep down there.

thanks! i have looked those things up like you have suggested and then tried
this in my template:

tt_content.image.20.maxW = 160

now the thumbnails are 44x33 which is way too small. isn't this strange?