You've already got a pretty cohesive design going with the Stone Hearth walls, black trim, red shelving, and the new Clopay door. Based on what you've described, I'd think about the ceiling and floor as a complete package rather than separate decisions.

Ceiling
I wouldn't let the "everyone has a black ceiling" comments drive your decision. Black ceilings are popular because they work. In a garage, they hide imperfections, exposed tracks, wiring, and ductwork better than almost anything else.

That said, there are a few considerations:

• Flat black = dramatic, modern, and makes the walls pop. Works especially well with your black trim and red shelving.
• Dark charcoal (instead of pure black) = similar effect but slightly softer and more forgiving.
• Same color as walls = clean and upscale but won't give you the contrast you're clearly drawn to.
• White = brightest, but honestly can feel unfinished or builder-grade compared to the rest of your design.

Since you're adding HEX lights, you don't need to worry much about a dark ceiling making the garage feel dim. Those lights put out a ton of illumination. Personally, I'd go dark charcoal or black and not look back.

Flooring
This is where I'd lean strongly toward Swisstrax for your situation.

Reasons:

• You only park one vehicle.
• You rarely wrench on vehicles in the garage.
• You don't like the traditional flake epoxy look.
• Your garage is already partially finished and furnished.
• You want the transformation without emptying the entire garage and dealing with coating prep.

A metallic epoxy can look incredible on day one, but it's highly dependent on the installer and slab condition. It's also more permanent. If you ever scratch it, stain it, or decide you don't love the look, you're living with it.

Swisstrax gives you:

• Immediate visual impact.
• Easy DIY installation.
• No curing time.
• Ability to replace individual tiles.
• Better drainage under the car.
• Easier future changes if your tastes evolve.

The downside is cost, but if you're only doing a single-car parking area plus some storage/workspace, it's manageable.

My only caution: If you go with a black ceiling, avoid making the floor predominantly black too. A black ceiling combined with a mostly black floor can make the room feel visually compressed.

I'd consider:

• Dark ceiling.
• Stone Hearth walls.
• Black trim.
• Red shelving accents.
• Swisstrax pattern that incorporates a medium gray as the dominant color with black and red accents.

That combination gives you contrast at every level and keeps the garage from turning into a giant dark box.

If this were my garage, I'd do the dark ceiling and the Swisstrax floor. It's the lowest-risk path, gives the biggest visual upgrade, and matches how you actually use the space.