Root causes:
- drawBorder wrote plain characters, overwriting fillBackground's ANSI codes
- renderTextWithInlineStyles spread node.props over inherited bg, but
undefined props from Vue clobbered the inherited backgroundColor
- Child text nodes did not inherit backgroundColor from parent Box
Fixes:
- drawBorder applies backgroundColor (and borderColor) to border chars
- Filter out undefined props before merging in renderTextWithInlineStyles
- Pass inheritedBg through the paint tree to text nodes
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Yunfei He
8e6c4c5c2b