future darktable 3.0 : handle any dynamic range efficiently with filmic RGB and tone equalizer

Feature-freeze for darktable 3.0 is due for end of September and several important changes have been integrated into daktable master these past few days. Let's learn how to use my two latest modules, tone equalizer and filmic RGB (v3), to edit any kind of picture, from backlit HDR to LDR studio headshots, in a few minutes and with no colour shift.