When a type has a unicode letter (like Δ) in the name, this "breaks" the name and the hightlight stops before. I'm guessing this is some issue in what letters are viewed as continuations of type names. As an example, you can see this code in Roots.jl:
https://github.com/JuliaMath/Roots.jl/blob/master/src/Derivative/halley_like.jl#L131
struct ChebyshevLike <: AbstractΔMethod end
which highlights as
When a type has a unicode letter (like
Δ) in the name, this "breaks" the name and the hightlight stops before. I'm guessing this is some issue in what letters are viewed as continuations of type names. As an example, you can see this code in Roots.jl:https://github.com/JuliaMath/Roots.jl/blob/master/src/Derivative/halley_like.jl#L131
which highlights as