v2.3.0 — Refined bar: borderless, titles-only, blended titles

• Borderless, half-height control bar.
• Each segment shows only its title by default; new showValues option appends the value inline (Size: 96px).
• Titles overlay above the slider (never hidden) and difference-blend against the bar so they stay legible over the fills.
• Difference blend moved from the type sample to the bar titles.
• Demo now uses an expressive variable font (Fraunces).