The Demo Site

In the real world we don’t have the chance of correcting our mistakes but Adobe Photoshop gives us an opportunity to step back and undo the wrong actions. In this lesson, you will learn how to do this. Additionally this lesson introduces you to layering, which is one of the fundamental and most powerful features in Photoshop.
Look at to this picture. The girls’ dress is solid. I want to make it patterned. In order to do this I use layer pallet.
Photoshop layers are like sheets of stacked acetate. You can see through transparent areas of a layer to the layers below. The opacity of a layer is changeable and content of the layer can be made partially transparent.

(By default the layer pallet is opened but if it is not, choose> window> layer). I create a new layer just by clicking “ Create a new layer” button.. Then, I select the brush tool. To choose the color, I click the Foreground color in the Tool panel. The Color picker window opens. I choose the color and then click the OK button. Its time to specify the brush size. So, I open the brush pallet by choosing Window> Brush.
In the brush pallet I select the brush shape and then the brush size just by typing it in the” Master diameter” box.Now I start to paint the dress just by moving the pointer over the image and clicking once anywhere in her dress.Undoing action

If you want to undo just the previous action, choose Edit> Undo but if you want to undo multiple actions choose Window> History. The History panel records the recent actions you’ve performed in the image. The current state is selected, at the bottom of the list.

Now I want to change some of the dots so I click an earlier action in the History panel, and examine the changes this causes in the image window: Several previous actions are undone. Now again I create new dot by using Brush tool. History panel has removed the dimmed actions that had been listed after the selected history state and has added a new one.