Problem:
The defined Symbols for Greek Letters are inconsistent. %ALPHA is a Latin in 
Times New Roman, italics, %LAMBDA is a private use character in StarSymbol 
Normal. This is an outdated behaviour since Unicode is availible.
For consistant layout of formulas Symbols should be taken from Unicode without 
a font or style attached. Now it is not possible to change standard font in 
Writer to anything other than TNR without changing the symbols catalougue 
extensively and it has again to be changed if the base font is changed.

Solution:
- Use only well defined Unicode-Symbols from the defined variable basefont 
without style
- If a character does not exist use a fallback font like in writer. (replace 
with a character from a similar font)
- Dump the current symbol-dialogue completely and replace it with extensive 
palettes of Unicode characters like in most TeX-applications, an insert>special 
unicode character dialogue and a simple auto correct function with all TeX-
Codes predefined