Try replacing a simple straight line with repeated symbols.
The colors that are in each font: Primary: red, yellow, blue Secondary: orange, green, purple Tertiary: red-orange, yellow-orange, yellow-green, blue-green, blue-violet, red-violet Diverse: many different warm and cool colors Grey: three different greys from light to dark Gradient: a greyscale gradient Solid: standard font and can be colored normally Software that supports color SVG fonts: Photoshop, since 2017 llustrator, since 2018 InDesign, since 2019 QuarkXPress, since 2018 Pixelmator Sketch Use the type/character menu controls to vary the spacing and density of patterns.