cross-hatching | hatching GLSL shader Blinn-Phong shading | Graphics library

I am trying to create a stacked bar plot containing three categorical variables and one discrete variable, where one of the categorical variables is “nested” within another. The “nesting” categorical variable would be visualized by color, and the “nested” categorical variable would be visualized by different textures (hashed lines, dots, etc.). The result would look like the image here: https://i.stack.imgur.com/vVm9q.jpg

I’ve had 2 main challenges doing this in R: 1) nesting one categorical variable within another, 2) symbolizing categories with textures. The closest solution I’ve found to “nest” one categorical variable within another is the script below. However, I would be looking to distinguish the category “sex” by texture using ggplot, not outline color. I would also prefer to have the discrete variable on the x-axis rather than the y-axis. This question shows that the “gridSVG” package may be useful, but I’m not sure how to incorporate this with ggplot.

I would like to have a custom CSS border texture around a rectangle, like hand-drawn cross-hatching for example. In theory I would create a "scale 9" slicing of the rectangle so no matter what dimensions it had it would always have the border.

Is anything like this possible purely in CSS? Or if not, then how could you accomplish this in JS? I am thinking in terms of creating a text input with an inner shadow sort of border effect around it using cross-hatching. Wondering if/how can that be done in pure CSS or if not pure CSS then in JS.

Side note, just discovered border-image, not sure if that's related.

I would like to have borders look essentially along the lines of this: