Calendar · Months: a month view, a year view, event chips and cards

CalendarMonthView lays a month in week rows. An event across days lies
over them as a bar in the first free lane, cut at the week's edge;
the rest sit by the hour as chips, and a crowded day keeps the rest
behind "N more". Arrows move a day, Page keys turn the month, and
Enter or a double press opens the day; the cursor holds through the
owner's echo of a turn. Days sit at sevenths of their row, as the bars
do, so text never widens a column.

YearView shows twelve small months; a day with something on it wears a
dot in its first event's hue. EventChip is an event in a line and
EventCard a block with its hours and place. MiniCalendar points to
forms::Calendar. Palette::hue is now the one home for a chart color by
index, for mail labels and events alike.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/mail/labels.rs

@@ -37,11 +37,7 @@ impl Label {
 /// Label `name`'s dot in the chart color at `hue`, centered in an icon's box.
 pub(super) fn hue_dot(name: &str, hue: usize, cx: &App) -> Div {
     let theme = cx.theme();
-    let tint = *theme
-        .colors
-        .chart
-        .get(hue)
-        .unwrap_or_else(|| panic!("label {name}: no chart hue {hue}"));
+    let tint = theme.colors.hue(hue, format_args!("label {name}"));
     div()
         .flex_none()
         .size(theme.icon_size(IconSize::Sm))