Simple Ironfur Tracker

Added

• Option: Show bar when Ironfur inactive — bar can stay visible with 0 stacks (e.g. for placement) or only when Ironfur is active.
• Option: Stack-based bar colors — fill color by stack count (1 / 2 / 3 / 4+), each color configurable; can be disabled to use a single Left BG color.

Changed

• Height slider minimum lowered (4 instead of 10).
• Border behavior — if “show when inactive” is off, borders stay off at 0 stacks even when “Show Border” is enabled (avoids border-only outline). If “show when inactive” is on, borders still follow “Show Border” on the empty bar.
• Bar uses full opacity whenever it is shown.