Image forming apparatus, image forming method, and non-transitory computer-readable storage medium storing image forming program

An image forming apparatus records an image on a recording medium including a first layer developing a first color when exceeding a first temperature, a second layer developing a second color when exceeding a second temperature, and a third layer developing a third color when exceeding a third temperature. The image forming apparatus includes a head applying energy to the recording medium from the first layer side and a control device configured to control the energy to be applied to the recording medium by the head so as to form an image of a mixed color of the first color, the second color, and the third color on the recording medium by controlling the head to apply the energy to the recording medium to develop the first color on the recording medium after developing the second color or the third color.