xnotes 0.7.0

• Ruler: a movable, rotatable straightedge with live angle readouts
• Page styles: set the paper colour and add line, dot, or grid rulings
• Shape snapping: hold the pen still snap freehand into a clean shape
• Per-pen colour: pin any pen to its own ink colour, independent of the toolbar
• Highlighter intensity slider for stronger or softer marks
• Per-pen Scale option to keep a constant on-screen stroke width at any zoom
• Smoother thumbnail scrolling in the file browser
• Added a Sponsor link in About