Color classes — r2s_color • r2slides

r2slides represents colors as one of two concrete classes, both of which are subclasses of r2s_color:

Usage

solid_color(color, alpha = NULL)

theme_color(theme, alpha = NULL)

alpha: NULL or a number in [0, 1]. NULL (the default) omits the alpha field from API requests, which Google Slides treats as fully opaque. Only meaningful in fill contexts; ignored with a warning in text-style contexts.
color: Hex string (e.g. "#4285F4" or "#F4A"), a named R color (e.g. "red"), or a numeric vector c(r, g, b) with each value in [0, 1].
theme: One of "DARK1", "LIGHT1", "DARK2", "LIGHT2", "ACCENT1"–"ACCENT6", "HYPERLINK", "FOLLOWED_HYPERLINK", "TEXT1", "BACKGROUND1", "TEXT2", "BACKGROUND2".

solid_color — a color with known RGB values. Accepts a hex string, a named R color, or a numeric c(r, g, b) vector.
theme_color — a reference to a named Google Slides presentation theme color. The actual RGB value is not resolved until the slide is rendered.