  While nanoscale color generations have been studied for years, the high
performance transmission structural color, simultaneously equipped with large
gamut, high resolution, and optical multiplexing abilities, still remains as a
hanging issue. Here, a silicon metasurface embedded Fabry-P\'erot cavity is
demonstrated to address this problem. By changing the planar geometries of
metasurface units, the cavities provide transmission colors with 194% sRGB
gamut coverage and 141111 DPI resolution, along with more than 300% enhanced
angular tolerance. Such high density allows two-dimensional color mixing at
diffraction limit scale. Beneficial from the polarization manipulation capacity
of the metasurface, arbitrary color arrangements between cyan and red for two
orthogonal linear polarizations are also realized. Our proposed cavities can be
used in filters, printings, optical storages and many other applications in
need of high quality and density colors.
