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    You will see the background is switching as given below:

                            CHANGING PEN COLOR AND SIZE

                      Pen blocks in Scratch enable a Sprite to draw and create coloured pixels on the

                      screen. These blocks, colour-coded in dark green, are used to trace the sprite's
                      footprints.

                      Changing Pen Color

                      Changing pen color in Scratch means making the line drawn by the sprite appear in

                      different colours instead of just one. You can use numbers from 0 to 100 to change
                      the pen colour.

                                                      : Lets you pick a specific colour (like red, blue, green).

                                                             : Shifts the colour  each  time, creating  a rainbow

                         effect as the sprite.

                      Changing Pen Size

                      Changing pen size in Scratch means adjusting how thick or thin the line is when the

                      sprite draws on the stage using the Pen Extension.
                      You get two blocks for this:

                                                   : Fixes the pen size to a value (e.g., 1 = very thin, 10 = thick).

                                                      : Increases or decreases the pen size step by step.

                     70     Premium Edition-IV

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