Replace the placeholder check-mark foreground with the finished agendula
mark (converted from design/icon/agendula_icon.svg): a rounded line-art task
card with a check, plus a small Calendula bloom badge in the open
bottom-right corner — the sibling of Calendula's calendar mark.
Strokes render in Calendula's off-white (#FAF6F0) over agendula's existing
plum background (#7A5C6B, the hue-rotated counterpart of Calendula's slate),
so the two apps read as a family while staying distinct. Scaled 0.66 to
match Calendula's footprint and ~2.8dp stroke weight; reused as the
<monochrome> slot for themed icons.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
