You need a desktop app to do this like glyphsapp on Mac ... Then u need to pick a base font and open each character to start rounding off corners ...
Android does not have any kind of Antialiasing anymore on fonts which causes problems with smaller size fonts ... Plus Note has amoled screen which differs a lot how it renders as compared to lcd
@v-b-n
Thanks for the answer, I tried few apps on windows but found it too difficult to edit glyphs.
Need to improve on that, or will try glyphsapp if available for linux.
Thanks again