v0.2.4

New features

• Implement add_hist2d and add_kde2d with colors by @hanjinliu in #20
• Overlaying methods for box plot and violin plot by @hanjinliu in #25

Bug fixes

• Fix marker layer by @hanjinliu in #21
• Fix tooltip artist of matplotlib by @hanjinliu in #24

Full Changelog: v0.2.3...v0.2.4