Thermal scanner camera app applies a color gradient to the video stream of your build-in camera based on the color intensity of the image. See everything colored in Thermal Filter Effect Colors like bright things in red/yellow and dark things in blue/green. Use the build in wheel and change the appearance of the colors. There are multiple color palettes and you can even create your own! Palette presets includes: Thermal Mono Heat map Fire & Ice Iron man Rainbow Predator Neon Features: Gradie