OSMO has developed Pro Color oil when a stain is desired and Polyx Oil is the intended finish.  Professional Color Oil is a high solid interior wood stain for use with OSMO Polyx Oil.  It is made from natural oils and waxes and is solvent free.

Pro Color Oil has high coverage (up to 600 square feet per Liter, however, the product is designed primarily for the professional installer.  Nine colors are available, see here.

1 Liter is approximately $80