Lustre is primarily a colour grading application. Project setup, editing, and basic image processing are all procedures that you perform in preparation for creating a convincing colour grade.
Colour grading procedures include:
Performing primary colour grading to change the overall colour look of each shot used in a series of shots, scene, or entire project. See Primary Colour Grading.
Modifying RGB and Hue curves to colour grade specific ranges of colour without using keys. See Colour Grading Secondaries.
Performing secondary colour grading to specific ranges of colour or areas in an image through keys and geometries. See Colour Grading Secondaries.