Eng:Change Pen Size by () (block)

The Change Pen Size by  block is a Pen block and a Stack block. The block changes the pen's size by the specified amount.

Example Uses
In art projects where users draw things, the pen size may want to be changedthis block does the job.

Some common uses for the Change Pen Size by block:
 * Repeatedly changing the pen size while the pen is being used to create interesting art
 * Changing pen sizes for an art program
 * In projects that draw objects with the pen, changing the size of the object(s)

Workaround
This block cannot be replicated with other Scratch blocks, due to the fact that there is no block that holds the pen size. However, if the block existed, the Change Pen Size by block could be replicated with the following code:

set pen size to ((pen size) + (amount))

Nevertheless, that is how Scratch itself does it.