dark theme: cython annotation invisible

[RalphFS]

The output of cython's annotation function is invisible if dark theme is activated.

sample code for reproduction:

%load_ext cython

%%cython -a
import cython
@cython.boundscheck(False)
@cython.wraparound(False)
def dark_theme_sum(double [:] x):
    cdef:
        Py_ssize_t i = 0
        int l = x.shape[0]
        double out = 0
    for i in range(l):
        out += x[i]
    return out

[vidartf]

Here, cython is making assumptions about the base styling of its HTML output that are incorrect. As far as I can see, cython has two options:

• Set the assumed styles (black base font) explicitly.
• Try to use the theme variables (if available) of lab (or the dark/light helper).

Not sure about the complexity of the second option, but at least the first option should be a good quick-fix.