mask_with_braille(
text,hardness,r,g,b) ->masked
Decoratively mask text with random braille characters and colors
Replaces characters in text with random braille symbols and ANSI colors
for decorative masking. The hardness parameter (0-100) controls how
much of the original text is preserved. Colors are randomized by default.
When b is provided, the blue channel is anchored to that value instead
of varying with the chosen braille glyph — useful for fading bands that
should share one hue.