MouseUp event, Mod and \ Integer arithmetic operators, extracting color values from the Long integer stored color.

The Long data type is made up of 32 binary digits, 
                                 32 bits, which is 4 bytes.
    One byte is wasted or unused in storing the color as a Long integer.

    Here is the format, with u meaning unused, and R meaning Red,
                                                   G meaning Green,
                                               and B meaning Blue.
    wwwwwwwwBBBBBBBBGGGGGGGGRRRRRRRR
     wasted   blue   green    red

Here is what RED looks like:    00000000 00000000 00000000 11111111

Here is what GREEN looks like:  00000000 00000000 11111111 00000000

Here is what BLUE looks like:   00000000 11111111 00000000 00000000

Here is what PURPLE looks like: 00000000 11111111 00000000 11111111

Here is what Yellow looks like: 00000000 00000000 11111111 11111111
                                             0       255      255
                                            Blue    Green     Red

Here is MEDIUM GRAY would be:   00000000 01111111 01111111 10000000
                                            127      127      128

Here is DARKER GRAY:            00000000 01000000 00111111 01000000
                                            64       63       64