Check window.devicePixelRatio and scale canvas accordingly for Hi DPI screens (retina).
Check window.devicePixelRatio and scale canvas accordingly for Hi DPI screens (retina).

dhustlerz/jquery-plugin-circliful,howard60915/jquery-plugin-circliful,femotizo/jquery-plugin-circliful,dhustlerz/jquery-plugin-circliful,evilemon/jquery-plugin-circliful,PsyGik/jquery-plugin-circliful,ebostijancic/jquery-plugin-circliful,evilemon/jquery-plugin-circliful,howard60915/jquery-plugin-circliful,ebostijancic/jquery-plugin-circliful,PsyGik/jquery-plugin-circliful,femotizo/jquery-plugin-circliful