alettes_contrast_to_action</a>
            </dt>
            <dd>Modifies the contrast of all background color palettes until it has a given state.</dd>
            <dt>
              class <a href="classbn_1_1bg__palettes__contrast__loop__action.html" class="m-doc">bn::bg_palettes_contrast_loop_action</a>
            </dt>
            <dd>Modifies the contrast of all background color palettes from a minimum to a maximum. When the contrast is equal to the given final state, it goes back to its initial state