pic of kitchen

I love your green color for the walls. I think your cabinets look fine and I wouldn't paint them. You might consider replacing the backsplash. It's not hard to do yourself.

Maybe paint the back of the glass cabinet too or find a fun wallpaper for the back of that cabinet. I would also find some more fun knobs or pulls.

I would not paint the cabinets, specially if what you have is a factory finish.

Maybe add a wool runner or area rug to add pattern and color. You will pay more upfront for a real wool hand knotted rug/runner, but it will last a long time.

For me, your counters have too much clutter. I would clean and organize, and then add a few pretty accessories to add some color.

Pretty runners in kitchen:

I am with the others and say those cabinets should not be painted. It's a big job by the way, and if your kitchen doesn't need it, it makes no sense to do it. Love the green walls. Just get a new backsplash, done.