[comp615]

Thread replies showed 24px (small) avatars, while the main timeline shows 32px (default), about the height of a one-line bubble. Top-level thread and continuation rows now use the timeline size. They already reserve a 32px avatar column (.nestedAvatar, .messageGutter, --message-side-space), so the bubble and text don't move.

Nested replies (compactAvatar) move from 16px (tiny) to 24px (small), one step below direct replies. That keeps the levels distinct without the big drop to 16px, inside the same 32px column. Compact density already used default for both.

I checked this in the message gallery with its sample replies set to the thread layout and one reply nested: direct replies measure 32px, matching the root message, and nested replies measure 24px, with no overlap. I haven't checked it in the real thread panel, at narrow width, or in dark theme.

🤖 Generated with Claude Code

[morgmart]

🤖 Design review: looks good. Thread replies now match the timeline avatar size.

One request from Morgan: please also bring nested replies up from tiny (16px) to small (24px). That gives 32px direct replies and 24px nested ones, so you can still tell the levels apart, but without the big jump down to 16. Nested avatars already sit in the same 32px column, so nothing else should move.

Not checked: I didn't run the app (this is from the code only), and I haven't looked at dark theme, narrow windows, or enlarged text.

[comp615]

🤖 @morgmart done in e325acc. Nested replies now use small (24px) instead of tiny (16px), so a thread shows 32px direct replies and 24px nested ones. They sit in the same 32px column, so nothing else moves. Compact density is unchanged and uses 32px for both.

I measured it in the message gallery with one reply nested: root 32px, direct reply 32px, nested reply 24px. The updated before/after is in the PR description. I haven't run it in the full app, and I haven't checked dark theme, narrow windows, or enlarged text.