Trace of one's picture is unexpectedly difficult in picture BBS.
I think that the mainly reason of its difficulty is the color making.
In other words, I’m no good at making a color from RGB values by intuition.
Of course, this problem is resolved at once by memorizing the value which I often use.
However, the making of the color imaged from RGB is also difficult.
After all, you may tell me “you are out of practice”.
Maybe, I should buy the book of color dictionary which have information of RGB values.
 
Subsequently, I want to buy this book.
 
ISBN:9784766113495