Small caps with wide tracking, not a smaller size. The mockup asks for one pixel
below body text, and one pixel would have cost a whole additional font handle at
full glyph range -- tab names are free user input and can be CJK. Tracking reads
the same in every palette and costs nothing, which is the same argument that
settled the section headings in the settings window.
Only the world and the clock use the meta face. Its glyph range is ASCII plus a
middle dot, so anything that gets translated has to stay on the body face.
Two things it will not do. It drops the tab name where one is already on screen:
a pop-out with its title bar on carries the name in the title, and the top-tab
strip carries it too. Repeating it one line below is the exact defect that got an
earlier header row removed, and the comment left behind at that removal is what
made this rule. And it disappears entirely below a minimum message-area height --
the window minimum is 260px, already shared with the honorific header, the input
row and the status bar, and all of it scales together. A header that leaves two
readable lines is worse than no header.
Both decisions are arithmetic and sit in ChannelHeaderLayout with tests. The
gallery gets an entry despite the header needing a tab and the font handles,
because that window exists precisely because pieces once shipped without a call
site.
JonKazama-Hellion
74f9ff7f16