Hello, experience long-distance Pacific cruising on a Jason 35, including to NZ. It's a fundamental conundrum: Superior non-skid versus better aesthetics. Any surface that is less slippery will hold dirt and stain more readily. Any surface that sheds dirt and stain and is easy to clean will be slippery.
We used Tuffcoat, similar to Durabak but water-based. Great actual non-skid, easy to apply and repair. It does stain. Easy to clean the dirt (not the stain) with hose, soft brush, and water. BTW, stains bleach out in tropical sun, FWTW. Three other boats in NZ liked our deck so much they applied a similar products. KiwiGrip is an acrylic. It has -0- non-skid properties of its own. Non-skid depends totally on the profile left by the roller. Durabak and Tuffcoat are moisture-cured urethane (not a polyurethane like the paints), with rubber granules. Both surface and profile provide non-skid. Did I say it does stain a bit? You can intermix Durabak/Tuffcoat colors to the tone of choice, which can take the edge off the white, ease the glare and hide some staining. One advantage of Durabak for the weekend DIY owner: It's best to apply in sections, not the whole deck at once. Of course, I know sailors with teak decks who would not allow potato chips in the cockpit for fear of oil stains on the teak, God forbid a glass of red wine! 2-part polyurethane paints (Perfection, etc.) are slick and shiny by design. Non-skid entirely depends on added grit. Works okay, easy to clean, best for color matching or contrast as you wish. Challenge is even distribution of grit, so best applied with a spray gun. Treadmaster is excellent non-skid, but very rough on skin and foulies. Not cheap, and doesn't stand up to UV very well. It's applied with epoxy, so repair/replacement means grinding down the deck. I just surveyed a Norseman 447 and its Treadmast was shot, with bare 'glass fiber glistening in the Hawaiian sun. The whole deck need to be ground down and resurfaced before new non-skid. At least there weren't thousands of screw penetrations into the balsa core. Maybe a good choice around the mast, but might as well use SeaDek pads as recommended above.
SeaDek is great, but expensive per square foot and does not last so long, due its softer foam material that makes it comfy. Take a look at a well used SUP. A combination of Seadek around the cockpit and paint+grit or Durabak non-skid on the working deck areas might be a good compromise. If you choose Durabak or a competitor, avoid the water based products and choose the solvent based. The water based products tend to stain more readily. Don't ask how I know.... I will use Durabak again on the next boat due to its superior non-skid (second only to Treadmaster), ease of application and repair.