v0.4.0

What's Changed

• Save current MSRV in manifest by @alerque in #44
• Improve graph image calculation and add tests by @lusingander in #45
• Fix ci by @lusingander in #47
• Graph color config by @lusingander in #48
• Half-width graph support by @lusingander in #50
• Minor code cleanup by @lusingander in #51

Full Changelog: v0.3.0...v0.4.0