Style wxSTC_PL_DEFAULT affects too many things

[patrickas]

While using the PPI experimental highlighter, set the variable wxSTC_PL_DEFAULT in \Padre\styles\default.yml to ff0000

Restart Padre (or change styles and change back to Padre)

Expected result: Only Tabs and spaces should become red

Actual Result: Tabs , spaces , variables and semicolons are red.

[azawawi]

PPI experimental highlighter is going to be removed soon in favor of Wx::Scintilla in Padre 0.92