Leafly Strain of the Year 2022 Jealousy hybrids continue to make their mark in 2023. Strain page visits climbed 10.8% month over month for Permanent Marker—(Biscotti x Sherb Bx1) x Jealousy F3—with its sickly sweet Sharpie-like fumes. Share your Permanent Marker head stash with a select few on clean glass, or in a big joint.