*UPDATE* You can also use Utility – sRGB – texture instead of Output - sRGB for pngs, jpegs and 8 bit images. This should be used when ingesting textures but should not be used for certain textures like the colour chart as this IDT will shift the colours.
ACES OCIO Configs: https://github.com/colour-science/OpenColorIO-Configs/tree/feature/aces-1.2-config mmColorTarget:
http://www.nukepedia.com/gizmos/colour/mmcolortarget