pt that they can
be mirrored independently and have different palettes.

<P><A NAME="ColorPalettes"></A><FONT SIZE=+1>Color palettes</FONT>

<P>Once the final color value is derived from the character data and 'palette
number' for the sprite or <A HREF="#Terminology">BG</A>, it is indexed
into the <A HREF="#PPUMemoryTypes">CGRAM</A> color palette array.&nbsp;
There are 512 bytes of CGRAM, with each of the 256 colors using two bytes.&nbsp;
Each of the palette entries is formatted like this:
<PRE>?bbbbbgg ggg