> The effort for a black alpha is zero, the effort for a red one is
> substantial, or in other words, _I_ won't do it. If there was a clean
> patch by someone else, I might apply it, though...
I have another idea. Under 'instant preview', when error happens and
latex can not compile the snipet, lyx will do nothing. How about
returning some image of 'wrong formula'?
I think this is a good idea since
1. Running latex on small pieces of code is a cost-effective way to
check for errors. .. and 'instant preview' has done that for us.
2. This can detect not only \text{\alpha}, but also other common
errors such as \cases without amsmath.
3. As far as I can see, the effort of doing this is not significant. We
need only to change the snipet latex code to '\fbox{wrong formula}'
when compilation fails and then compile again.
Any opinions?
--
Bo Peng