A consistent ggplot2 theme used across all plotting functions in the package. Extends [ggplot2::theme_minimal()] with tighter panel grids, consistent strip styling for facets, and slightly larger axis text.
Use as the final layer of any ggplot, e.g. `p + theme_sspLNIRT()`.
See also
[scale_colour_sspLNIRT()], [scale_fill_sspLNIRT()] for the matching discrete palette helpers; [plot.sspLNIRT()] for the main plotting entry point.
Examples
if (FALSE) { # \dontrun{
library(ggplot2)
ggplot(mtcars, aes(wt, mpg)) +
geom_point() +
theme_sspLNIRT()
} # }
