Creating A New Image And Color Section

Hello,
To create a new image, select File -->New, or press N
A dialog box pop up prompting you to define five general elements for creating a new image.

* Name the image now. (or later, when you save the image)
* Predetermine the size of the image

* A resolution of 72 ppi (pixels per inch) is generally used for Internet purposes.
Anything higher than that can be used for images requiring high quality, such as
those required for print or video.

* In our working, we'll stay with the RGB (Red Green Blue) color mode, which
offers general colors. There are also other preset odes that offer difficult
schemes such as grayscale.
* The contents section allows you to decide what will be the initial background color of the new image. (Set to Transparent or to White)
Before we start drawing or editing we should first learn about the color selections in Photoshop :
Understanding Color Selection

Color selection is the act of picking the color that you want to use as a part of your image.At a time, Photoshop remembers two colors for you: the foreground color and the background color. The foreground color is used to make gradients and fill in the erased areas of an image.
There are several ways in Photoshop to change the foreground and background colors, we'll cover the most common methods here.
USE THE DEFAULT COLORS. Clicking the 'set default colors' button on the toolbox. This will set the foreground color to black and the background color to white.
SWAP THE BACKGROUND AND FOREGROUND. Clicking the small curved arrow on the toolbox will reverse the foreground and background colors.
USE THE EYEDROPPER TOOL TO SAMPLE A COLOR. The eyedropper tool, located on the toolbox, allows you to simply click on a color in an open image to select it as the foreground color.To set the background color, hold down the ALT key when you click. When using a painting tool, you can temporarily turn the cursor into the Eyedropper tool by holding down the Alt key. When you release the Alt key, the cursor turns back into the previous panting tool.