Another collection contains the parameter options ` f7`, which can
be chosen by moving the cursor. Single line extracts from these three
panels can be viewed by using the cursor arrows or the page and
paragraph keys, just as though one were using one of the popular
text editors. Finally, keys ` f9` and ` f10` govern the color
palette; this allows individual bitplanes to be viewed and agreeable (or
even disagreeable) colors to be chosen.

- 1: atern - alternate rule
- 2: wfrno - Wolfram rule number
- 3: hdens - high density - mils
- 4: mdens - medium density - mils
- 5: ldens - low density - mils
- 6: wdens - scarce dots - number
- 7: elrad - radius random ellipse
- 8: nchek - ch. squares per row
- 9: tacol - table color
- 10: macol - marker color
- 11: cucol - cursor color

In greater detail, the significance of each parameter is the following.

- 1: atern - Chooses alternate lookup tables for the Moore
neighborhoods when they exist; range 0-4.
- 2: wfrno - A number in the range 0-255 which is the Wolfram rule
number for the one dimensional binary automaton option.
- 3: hdens - The density (mils) of live cells for the option
`c`. - 4: mdens - The density (mils) of live cells for the option
`R`. - 5: ldens - The density (mils) of live cells for the option
`p`. - 6: wdens - The actual number of dots for the option
`w`. - 7: elrad - The radius (in units of about 6 pixels) of the ellipse
for option
`y`; range 0-54. - 8: nchek - The number of checkerboard squares for option
`k`. - 9: tacol - The number in the range 0-255 used by
`videocattr`to display table entries; it combines foreground and background. - 10: macol - The number in the range 0-255 used by
`videocattr`to mark table entries; it combines foreground and background. - 11: cucol - The number in the range 0-255 used by
`videocattr`as a cursor when displaying tables; it combines foreground and background.

E-mail:mcintosh@servidor.unam.mx