Putting "Icons" into the packages search field on CTAN produces 17 hits
Interestingly one includes Knuth's own input
but only a few are close to your request for modern App stylised output.
None will provide the android recommended / required res structure.
App studio recommends an SVG input, See Ulrike Fischer's comment as to how this may be achieved via latex + dvisvgm. however I found this produced an odd translucent result
Ignore the crude graphic note by default the collar is showing through the face
For Martin Scharrer's pdf2svg tikzpicture method see /try his answer at https://tex.stackexchange.com/a/51766/170109
however I had problems running interactively so using on command line
I got a better opaque result (to produce this output, note it is the larger drawable-xxxhdpi since I cant upload the .svg)
So here is the code
via this sequence
pdf2svg logo.pdf logo.svg
A windows version can be found here https://github.com/jalios/pdf2svg-windows/releases
And here it is loaded in Asset Studio and the download res file with 5 perfect images will be about 55KB (well lean! 130 if you include web version)
Whatever TeX / TikZ / SVG output takes your fancy. (that last one is blochsphere)
Alternately the icon you have identified and as shown in the answer by JouleV can be modified to suit a suite of the recommended pixel sizes.
The key to pixel sharpness is choosing a large enough scale that works for Hi-Res and can be divided down to smaller sizes, whilst retaining clarity in an application such as inkscape. The set of manually reduced icons can then be loaded and modified in Image Asset Studio to add the desired rounding etc.