v1.12.0

I will deliver new features for users today! 😄

• Graph now supports the publishOptionalData property!
  • If this property is true, each pixel's optionalData will be added to the generated SVG data as a data-optional attribute.
    • On the other hand, be careful because the data-tippy-content attribute is removed.
  • This feature is limited for Pixela Supporter.
    • About Pixela Supporter , please check How to support Pixela by Patreon ／ Use Limited Features.
• Fixed a problem where the gradation was not good for graphs that consisted only of small values（ #9 ）.
  • Thank you feedback, @Sabazo !!