Support color set

[hg-pyun]

How about supporting color set options..?

[pistis]

@hg-pyun
Do you mean the color of the word cloud?
word art color set

[hg-pyun]

Like this? I wish it could be made using only the appropriate color.

[pistis]

@hg-pyun
The idea you proposed is very good.
I will try to include this feature in v0.4. :)