The movies above are a subset of confocal Z series generated from fresh explanted tissue of mice containing a knock-in of fusion red reporter to the Csf1r locus as well as the Csf1r-EGFP transgene.  Most macrophages are both red and green and appear yellow. As the field of view moves inwards from the surface there is a transition from a capsular stellate population.  Additional movies are available for download linked to the original publication. 

A Transgenic Line That Reports CSF1R Protein Expression Provides a Definitive Marker for the Mouse Mononuclear Phagocyte System.

Grabert K, Sehgal A, Irvine KM, Wollscheid-Lengeling E, Ozdemir DD, Stables J, Luke GA, Ryan MD, Adamson A, Humphreys NE, Sandrock CJ, Rojo R, Verkasalo VA, Mueller W, Hohenstein P, Pettit AR, Pridans C, Hume DA.J Immunol. 2020 Dec 1;205(11):3154-3166. doi: 10.4049/jimmunol.2000835. Epub 2020 Nov 2.PMID: 33139489