= Kirby color
{c}
{title2=$\Omega=\sum_{j=0}^{r-2}d_j\widehat f_j$}
= Kirby colour
{c}
{synonym}
The Kirby color is the weighted sum of annular closures of the surviving <Jones-Wenzl idempotents> at a root of unity. Its weights are their closed bracket traces. The <fusion of Jones-Wenzl colors> gives $a\Omega=d_a\Omega$ in the annular fusion ring. Inserting the corresponding fusion resolutions along a band gives the <Kirby color handle-slide identity>, the central ingredient of surgery invariance.
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