When searching the search pannel font is small, if type CTRL++ and CTRL+- in the editor screen, that make search pannel's font correct
my editor settings is:
font: monospace
font size: 9
zoom: 130%

i think the problem is that search pannel doesn't have the correct zoom value when it's initialized, but when zooming in the editor it get the correct zoom value

i attached two pictures:
QCbefore.png: Show that search pannel has a too small font size
QCbafter.png: The search pannel get the correct font size after typing CTRL++ CTRL+- in the editor