Aqua Patch and Splash Energy

[BJJ763]

A Leaguer got upset with me when I mentioned she couldn't get Splash Energy with Aqua Patch.

But I couldn't find a ruling so I figured i'd ask.

Her view is Splash Energy does not have the "provides {colorless} energy when not in play" so she can Aqua Patch it.

I told her the card "only provides Water Energy only while this card is attached to a Water Pokémon."

But there's nothing like an official ruling

 

[PokePop]

Well, it doesn't provide colorless energy while not in play.
It provides no energy.
It also doesn't count as a colorless energy card.
But, the thing that does matter, and that addresses her question, is that it states, "This card provides {W} Energy only while this card is attached to a {W} Pokémon.
So that means that at all other times, including while in the deck or in the discard, it is not providing {W} energy and therefore can't be "seen" by Aqua Patch.