→Search Level: A whole explanation as the lead sentence is still better
Every species of Pokémon has its own Search Level
. It is capped at 999 but otherwise is equal to the number of times that species has been seen (the "times encountered", as shown in the Pokédex). As a species' Search Level increases, the DexNav will be able to give the player more details about hidden Pokémon of that species. The color of the background on the Found Pokémon, Nearby Pokémon, and Hidden Pokémon screens ranges from shades of gray to orange depending on the subject Pokémon's Search Level.
There are two ways to see more of a Pokémon and increase its Search Level: