First, you should create a palette. Generally, it should be made up of the same colors that you have beads for, but you can use any colors. In the Palettes tab, press "New Palette" and give it a name.
ICOOP - 2D Grid-Based Platformer (Java) Java 2D Zelda-style game engine developed at EPFL (CS-107). Implements grid-based movement, tile collision detection, interactive objects (doors, switches, keys ...