The “Color Replacement” tool

Similar to the “Replace Color” option, we can use the “Color Replacement brush” tool to color in a photo.

Select this “Color Replacement” tool (1) in the toolbar. If you do not see this, you will find this tool under the “Brush”.

The foregroung color you set, will replace the color in the photo (2).

Set the options in the options bar (3).

And click and drag over the color you want to change in the photo (4).

A brief explanation of the options bar.
The first three buttons:

“Sampling Continuous”: any color under the cross is replaced when I click and drag over with the mouse pointer.

‘Sampling once “: only the color that you first clicked will be replaced. “Sampling Background Swatch” has little or no use.

The box, “Tolerance” refers to the deviation of the color, shows a higher tolerance for a higher color difference.

With the box “Limits”, we have three possibilities:
“Contiguous:” Photoshop will look for adjacent pixels.
“Discontiguous”: this is the opposite.
“Find Edges”: Photoshop will try to stay within the edges.

Tip: If you wish to change a lighter color (eg yellow) to a dark color (eg red), first change the “Mode” box in the options bar to “Brightness” and color in Yellow.
Change the “mode” back to “Color” and color on the yellow.

Gradient

We use the “Gradient” tool when you want to colorize a particular area with a gradient of colors.

Photoshop gives us a set number of “Gradients”.

Default is selected to set the foreground and background color displays.

If you change the foreground or background color, so will the evolution of color.
If you wish to use a different “Gradient”, click the downward pointing arrow and make a selection from the list that is provided by Photoshop.

Click and drag the mouse pointer in the image to apply the chosen “Gradient”.

If you want to provide only part of the image with a “gradient”, please create a selection with one of the selection tools.

And only then click and drag the “Gradient” in the selection.

The “Gradient” tool or “Bucket” tool will automatically create a new layer.

So, to create a new layer to apply, first click on the “Create a New Layer” button in the bottom of the “Layers” panel.

To create, modify or remove a flow, we use the “Gradient” Editor.

In order to open the gradient editor, click the “gradient” in the options bar.

In the upper half of the window, we first choose an existing “gradient” (1).

Then you specify the colors in the color bar below.

Note that the lower part of the color bar (2) is used to add or delete color. The upper part of the color bar (3) should increase thetransparency of the color.

You add a color by clicking on an empty space below the color bar. This adds a block to the color bar, we call it, the “color stop”.

To change colors, double click on the “color stop”.

To remove colors, drag down the “color stop”.

Ditto for transparency, we can add, remove or dice it even here, we call it “Opacity stop” here.

We set the transparency at the bottom, in the “Opacity” dialog box.

If you want to save the “gradient”, give the “Gradient” you created a name and click the New button (4). The “gradient” that you just created is selected in the options bar of “Gradient” tool.
The next time you use the “Gradient” tool, you will see that the created “Gradient” is added to the list (5).

The Gradient Type can also be changed to “Noise”.
You should try this, this may also have nice effects.

Tip
If you have some time, you should experiment with the different modes in the options bar of the “Gradient” tool.
You’ll be amazed at the possibilities.

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