[Feature Request] Add distinct color highlighting for user messages in conversation view

Bug Description
"When scrolling through long conversations, it's hard to find my original questions. Please add an option to display user messages
in a distinct color. This is especially true in Plan Mode, where the plan is shown after Claude answered, covering the answer itslef"

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.15
• Feedback ID: b0d93c73-7ef0-4591-815c-ab1127204fa5

Errors

[{"error":"Error: ENOENT: no such file or directory, scandir '/Library/Application Support/ClaudeCode/.claude/skills'\n    at Module.readdirSync (node:fs:1583:26)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:1766\n    at UX (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:34567)\n    at Object.readdirSync (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:1736)\n    at fw1 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1540:369)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1540:4279\n    at q (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:6808)\n    at DT2 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4183:4362)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4183:6961\n    at q (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:6808)","timestamp":"2026-01-22T14:46:34.826Z"},{"error":"Error: ENOENT: no such file or directory, scandir '/Library/Application Support/ClaudeCode/.claude/skills'\n    at Module.readdirSync (node:fs:1583:26)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:1766\n    at UX (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:34567)\n    at Object.readdirSync (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:1736)\n    at fw1 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1540:369)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1540:4279\n    at q (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:6808)\n    at DT2 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4183:4362)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4183:6961\n    at q (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:6808)","timestamp":"2026-01-22T14:54:31.340Z"},{"error":"Error: ENOENT: no such file or directory, scandir '/Library/Application Support/ClaudeCode/.claude/skills'\n    at Module.readdirSync (node:fs:1583:26)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:1766\n    at UX (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:34567)\n    at Object.readdirSync (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:1736)\n    at fw1 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1540:369)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:1540:4279\n    at q (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:6808)\n    at DT2 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4183:4362)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:4183:6961\n    at q (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:6808)","timestamp":"2026-01-22T14:58:07.323Z"},{"error":"Error: EISDIR: illegal operation on a directory, read\n    at Module.readFileSync (node:fs:441:20)\n    at file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:464\n    at UX (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:8:34567)\n    at Object.readFileSync (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/node_modules/@anthropic-ai/claude-code/cli.js:9:433)\n    at f37 (file:///Users/mixyourshot/.nvm/versions/node/v22.17.1/lib/nod…

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