The Select tab sheet of Advanced Mode offers two sets of controls for selectively adjusting the brightness, contrast and color recovery (colorkey) of image areas that have a certain color in the original image. These controls can help to fine-tune the b&w conversion and make the b&w image look even more impressive. Additionally you can bring back certain colors in the image thus creating a so-called colorkey effect.
In Advanced+ Mode these effects are located in the second section of the Effects combo box. The arrow-down button in the top left corner of the Select tab sheet displays a menu with various film simulation presets.
When you select "Tonal" in the Controls combo box at the bottom of the tab sheet you will see three sub tabs at the top in Advanced Mode. Each sub tab contains seven or eight color sliders for adjusting the brightness, contrast and color recovery of image areas with a certain color. In Advanced+ Mode there are no sub tabs, but you can choose the same three items from the Effect combo box. Move the sliders to the left to decrease the brightness, contrast and color key effect and move them to the right to increase them. Double click the slider label to reset a slider to zero.
Click the eyedropper icon to activate the eyedropper tool. Then click on the preview, hold down the mouse button and drag the tool to change a slider value. The color of the pixel that you clicked on the preview determines which slider will be changed while dragging the mouse horizontally. For more information see the Tools & Reset page.
The Intensity slider below the separation line decreases or increases the total effect of all sliders on this tab sheet. The Tolerance slider suppresses or amplifies the color masks of the eight available colors. As a result the total effect of all sliders on this tab sheet is also decreased or increased, but you should be more careful with this slider as too high values may produce artifacts.
With the Controls combo box set to "Color" you will see eight color boxes at the top of the tab sheet. Each of these color boxes has five sliders assigned to them. Clicking on a color box displays the sliders that belong to it. So while the Tonal controls apply a selected tonal operation on image areas of certain colors, the Color controls perform tonal operations on an image area with a selected color. In some cases the Tonal controls will be more convenient and in others it may require fewer clicks to use the Color controls.
Each color box contains sliders for adjusting the brightness, contrast and color recovery of the image areas with the selected color. Negative slider values decrease the brightness, contrast or colorkey effect whereas positive values increase it. Double click the slider label to reset a slider to zero.
There are also two additional sliders called Tolerance and Hue Range, which are not available when the Controls combo box is set to "Tonal". The Tolerance slider controls the mask intensity of the selected color, which in turn influences the effect intensity of the brightness, contrast and colorkey sliders. Slider values above 50 amplify the mask whereas lower values suppress it. Values above 90 can produce artifacts, because the color mask might be stretched too much.
The Hue Range control displays a color gradient which ranges from red to green to blue and finally to red again. It represents a continuous color circle, because the red color on the left and right-hand side are identical. Below the hue bar are two arrows connected with a line. The arrows indicate which color range is currently targeted. If you switch to another color in the color box row, you can see that the two arrows are repositioned to display the color range of the newly selected color. You can change this color range by dragging one of the arrows in order to target a larger image area. If you drag an arrow beyond the left or right-hand side of the hue bar, it will reappear on the other side. By dragging the line that connects the arrows or dragging directly on the hue bar between the arrows you can move both arrows simultaneously and retain the size of the color range.
Please note that the adjustments of the Hue Range control may only be subtle, because the color mask is not only determined by the selected hue range but also based on other internal parameters. For example, if you currently have the red color box at the top activated and drag the arrows towards the blue area of the hue bar, you won't be able to affect blue or green areas in the image with the sliders of the red color box. You will only be able to exclude certain red tones and maybe include magenta and orange tones which lie nearby on the hue bar.
The Intensity slider below the separation line decreases or increases the total effect of all sliders on this tab sheet. The Tolerance slider below the separation line suppresses or amplifies the color masks of all eight colors. As a result the total effect of all sliders on this tab sheet is also decreased or increased, but you should be more careful with this slider as too high values may produce artifacts.