[QUESTION] Change the icon size of an "image" widget

[dexslender]

I am making a taskbar. For the icons I'm using “image” widget where I pass the icon as string and it works, but the problem is that some icons are displayed larger and increase the height of the bar.
Is there any property that allows me to set the limit of the size of the image?
I have tried with “:image-width”, “:image-height”, in css “max-width” and “max-height”, but it doesn't seem to work.