#8 trace bell limit

[Ian Broster]

on minor, i seem to be only able to trace 5 bells.
it is useful to
trace all bells so that the structure of the method can be seen at a
glance.
i

[Ian Broster]

Logged In: YES
user_id=215699

hmmm, i can now only trace 4 bells. perhaps there is
a more subtle
problem here ;-)
i

[Max Spicer]

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user_id=403066

This limit is imposed solely by the number of defined
colours. Currently, colours are not reused and there is no
way of defining new colours to use. This needs work.