"All you need is two to three pastel colors of your choice ... each nail has a sweet pink heart for added interest. This mix-and-match manicure uses a fun blend of pinks, purples, yellows ...

Entering that context is Pastel, the latest app from developer Steve Troughton-Smith. Pastel is a color palette utility for the iPad and iPhone that has a Catalyst-powered Mac version coming soon. The ...