settings.color.increment.* returns Infinity

[Pabline]

Sometimes when use the gradient don´t colorize the words because settings.color.increment.* returns Infinity. This is caused because when you calculate this.settings.range doesn't control if all tags has weight 1 and range returns 0 then in:
"r": ( this.settings.color.end.r - this.settings.color.start.r ) / this.settings.range and G and B returns Infinity. To solve this I put an if statement to calculating if range==0 then range=1.
Here all tags are printed.

I hope I have helped
Greetings and thanks for this great script.