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XD currently uses a virtual pixel for most of its measurements (including font size), which should be the same unit of measure as a CSS pixel, or most measurements in iOS. It's roughly equal to 1 physical pixel on a 72 dpi monitor (and, incidentally, a point).
I'm afraid there's no option to change the unit currently. Which units would you find useful?
I work on iOS and Android Applications.
For Android our developer wants to have the font sizes communicate in pixel, but based on a 160 dpi view which is the base size for Android.
But I even make the test:
Saved a view from XD as PNG. Opened it in Photoshop as a 72 dpi view. And checked the size of the fonts. Its the same I use in XD.
Thank you for your help.
SO are you saying that the system XD uses is the same as point when on a 72dpi screen?
I would use PT, like Sketch does, due to diverse pixel densities across devices. My monitor, for example, is 96 dpi. So, for a 20px font to render the same size as a 20pt font I have to increase the font size to 27px. But say, another person were viewing my design with a 72 dpi screen then the 27px text with would be much larger than I intended. It would render as the equivalent size of a 27pt font.
So, this becomes a huge issue in a work space where the design may be viewed or created on multiple screens with differing pixel densities.