Set text size or paint brush size in percent?

MIT App Inventor Help
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1

Hello everyone!
I was wondering if there's a possibility to set the font size of the text in a label or the size of the canvas paint brush in percent? It seems to be not possible in the normal menu, so do I have to download an extension? If you know any way to solve this please tell me!

Thank you ^^

2

The canvas paint brush is set in pixels from 1 to infinity (?)
You could use your canvas size/no of pixels to generate/handle a percentage ?

You can probably similarly do the same thing for label font size with blocks, what would 100% font size be ?

3

The heights of fonts and other elements can be specified in the "initialize screen" block. You can make the font size e.g. 5% of the screen height.