When you close the box and return to your grayscale image the only indication that this area is selected is the red HUD line around your image will be displayed. You can see the yellow areas of the bridal flowers are selected because they are blackened. "Color Area" and "Color Tolerance" Sliders The image will revert back to grayscale when the box is closed. NOTE: When using the color selection feature, the original image is revealed to make selecting colors (hues) easy. Repeat these steps to select additonal colors. To increase or decrease the blackened areas use the "Color Tolerance" to grow or shrink the color selection. In this example, the yellow on the flowers blackened, this means the area is ready to be tinted purple. As you move the slider back and forth, you will notice areas in your photo will begin to blacken (blackened areas indicate what color is selected). To do this I'll align the color area slider under the yellow part of the rainbow colored line. On the image above I want to change the yellow parts of the flower to purple. On the color selection box, use the "Color Area" slider to choose the color area you want to tint. (3) Use the "Color Area" and "Color Tolerance" Sliders to Select Paint Areas When you select the next color to paint add a new layer and then name it to reference the new color. To keep organized rename the layer your tinting, in this instance it's the flowers, so I'll rename the layer to "Purple Flowers". On the right is the "Layers" panel - the first layer was created when the photo was imported. "Color Selection" and "Clear Color Selection" buttons To paint outside the selected areas, clear the selection by using the icon next to the "color selection" tool (you will know it's cleared when the red HUD line disappears). While in this mode you will not be able to paint outside the selected area. This is called the "color selection" mode. NOTE : This is the only indication that the area is selected and ready to paint.
There will not see marching ants (selection line), instead you will know the area is selected and ready to paint when a red "HUD Line" displays around the image. When your finished selecting a color, "close" the window then paint the selected area. Use the sliders to pick a color (hue) and paint a new color in its place. On it will be the original image and two sliders: Color Area and Color Tolerance. When the color selection button is choosen a box will slide down (shown on step #3 in more detail). For example, in the image below I'm going change the color of the bridal flowers from yellow to purple while keeping the greenery around the flowers untouched. This method is a very quick and easy way to paint all the reds in an image (or any specified color) without getting the red paint into other areas. Color selection works by selecting a hue in the image then constrians the selection to allow painting in only that area.