This puzzle type has many different names, the most common being nonogram and picross. Whatever you call it, to solve this logic puzzle, you must treat each clue as a list of the number of consecutive cells of each color in that row or column of the grid, ignoring blank cells. Solving the grid nets the following image:
From this point, there are two ways to solve the puzzle. Solvers who are familiar with Minecraft may recognize the image in yellow and brown as a GOLDEN APPLE. Other solvers will notice the black cells in the image. With each black cell interpreted as a dot, the message can be read as Braille:
The three lines read GOLD EN APPLE, which – other than the line break in the first word – gives the same answer – GOLDEN APPLE.