Title: A geometric realization of the $m$-cluster categories of type $\tilde{D_n}$,
Abstract: We show that a subcategory of the $m$-cluster category of type $\tilde{D_n}$
is isomorphic to a category consisting of arcs in an $(n-2)m$-gon with two
central $(m-1)$-gons inside of it. We show that the mutation of colored quivers
and $m$-cluster-tilting objects is compatible with the flip of an
$(m+2)$-angulation. In the final part of this paper, we detail an example of a
quiver of type $\tilde{D_7}$.