Great minds clearly think alike! We've a whole a new addin that we've developed. We should release the beta, but we're about to redevelop the whole thing in C# to solve some snags we've hit (currently its written in VBA).

• Greek characters with the current version should work with just by adding a backslash in front of the greek name of the character, i.e. \alpha
• Font size will be fixed in the new edition
• Color is tricky - since we already do some colouring, but we'll consider it
• Toggle for LaTeX text is a nice idea, I think its probably easiest to route the user directly to our Equation editor.
• Numeric values is also solved in the new version - in fact we're done a whole lot more.