0px Cumulative Line Drift Alignment

Traditional split-screen Markdown editors suffer from vertical drift between line number gutters, cursor line highlights, and text content when scrolling long documents.

Engineering Implementation

Marka solves this with a custom layout engine:

1. Measured preferredLineHeight: Calculates exact integer font metrics.

2. Centered StrutStyle: Enforces uniform vertical line bounds for every paragraph, heading, and code block.

3. Zero Cumulative Drift: Guarantees 0px offset across 200+ lines of long text.

// Core alignment StrutStyle snippet
const StrutStyle(
  fontFamily: 'JetBrainsMono',
  fontSize: 14.0,
  height: 1.6,
  leading: 0.0,
  forceStrutHeight: true,
);