thlcol: Vector of THL colors
In thl-mjv/thlcol: Create Palettes for THL Color Schemes

Create a vector of THL colors as defined in https://yhteistyotilat.fi/wiki08/x/DgBJAQ The parameters are recycled

thlcol(shadegroup = NULL, darkness = NULL, alpha = 1)

thlgrey(darkness = NULL, alpha = 1)

thlcolbynum(i = 1, alpha = 1)

`shadegroup`	group of groups of shades to use, a letter from "A" to "I"
`darkness`	darkness or darknesses to use, "V" light, "K" medium, "T" dark, "L" bright (use "L" sparingly) for thlcol, 1 to 5 for thlgrey
`alpha`	opacity of the color (recycled)
`i`	number of the color (1-41)