Funky pink gravel is as good as anything else. You want to make sure, however:
1. You are getting true aquatic plants.
2. You are getting low light species
3. You are not planting things that don't like to be planted. Like I said, many would like to be tied, above the gravel, to a rock or piece of wood with cotton thread or fishing line. The roots will attach it permanently in a few months.
4. You don't want to bury that black pot with the green wool in the gravel and walk away.
5. If you do buy a plant that is "planted" in the gravel, you may want to get what they call, root tabs. Like a small piece of fertalizer you put under the plant. They don't do so well in normal aquarium gravel if you do. No nutrients to speak of, even if it is pink.
Here is a link to some common plants. This is a visual reference for you.
Here is a link to an expample of the root tabs. (home page has an over-ride feature. Close link and click again to go to the right page if it doesn't show the first time)
I would personally look for the following types of plants.
Tied on, above the gravel:
Anubias nanna, anubias coffefolia, anubias lanceolata, anubias....just about anything that has the word anubias is pretty forgiving and grows well in low light. Any form of Java fern. Java fern, java fern narrow leaf, etc. One of my personal favorites is Bolbitis heudelotii the african water fern.
Planted in the gravel: Cryptocoryne Lutea, Cryptocoryne Wendtii just about any type of "Crypt" will work. Many of the common amazon sword plants, Echinodorus amazonicus. There are many varieties. One I keep with good results is the Ruby melon sword.
Hope that gives you a small idea of what to look for. If you have any other questions let me know. I'm no expert but I can share the info I've gathered.