feat(hourly): raindrop labels the rain-chance row

The bars had no legend. A raindrop in the bars' own colour sits in a
left gutter on their row; the band shifts right by the gutter so the
hour columns stay aligned.

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

2 files changed, 8 insertions, 0 deletions

diff --git a/lib/weather.lua b/lib/weather.lua
index a30663f..3cb7b64 100644
--- a/lib/weather.lua
+++ b/lib/weather.lua
@@ -35,6 +35,7 @@ M.ICON = {
   few_night     = '\u{E379}',
   overcast      = '\u{E312}',
   unknown       = '\u{E374}',
+  raindrop      = '\u{E371}',
 }
 
 -- WMO weather code to glyph. The codes are sparse groups, not ranges, so a
diff --git a/widgets/hourly.lua b/widgets/hourly.lua
index dfcc64d..31a425b 100644
--- a/widgets/hourly.lua
+++ b/widgets/hourly.lua
@@ -15,6 +15,12 @@ local function draw_curve(cr, x, y, w, h, colors, hours, S)
   local n = math.min(#hours, 24)
   local label = math.max(9, math.min(h * 0.135, w / 8 * 0.22, S * 0.32))
   local glyph = label * 1.5
+  -- A gutter on the left for the raindrop that labels the rain-chance row.
+  -- The whole band shifts, so the hour columns stay aligned with each other.
+  card.font(cr, card.FONT_MONO, label, false)
+  local gutter = card.advance(cr, weather.ICON.raindrop .. ' ')
+  local x0 = x
+  x, w = x + gutter, w - gutter
   local slot = w / n
   local function px(i) return x + (i - 0.5) * slot end
   local top = y + glyph + label * 1.6
@@ -44,6 +50,7 @@ local function draw_curve(cr, x, y, w, h, colors, hours, S)
     end
   end
   cairo_fill(cr)
+  card.text(cr, x0, base - label * 0.1, weather.ICON.raindrop)
 
   card.rgba(cr, colors.rule, 0.6)
   cairo_set_line_width(cr, 1)