Style #1 Connected Principled BSDF to RGB separator, customized the color ramp, and recombined the RGB, using a pale yellow for the base color.
Style #2 Connected PrincipledBSDF and Emission to Mixshader, ColorRamp color to factor of mixshader, and layer weight factor to factor of color ramp, ticked on Bloom, and then rendered in Cycles.
Style #3 Applied emission to all materials, and then applied calligraphy modifier with min thick 7.8 and max thic 8.9.