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`colorus`

Sets powerlevel9k prompt to use up to 5 colours from colour schemes generated by pywal.

Acknowledgements

Uses python3-compatible version of this gist

How to use

Add the line . ~/.colourvars to .zshrc, probably before powerlevel9k settings.

Use the following variables in those settings instead of specifying terminal colours: $LINE1, $LINE2, … $LINE5

e.g.

POWERLEVEL9K_CUSTOM_PROMPT_FOREGROUND="$LINE1"

Add this function to .zshrc, replacing PATHTOCOLORUS as appropriate:

pywal() {
        wal -i "$1" # plus any other options usually invoked with wal
        PATHTOCOLORUS/convert.sh
}

Then call pywal instead of wal (or any other name you choose to give the new function), specifying the source image as usual. Prompt colours will refresh when you open a new terminal.

Potential issues/improvements

Not sure how well this would work with dark terminal themes/without clear p9k backgrounds (only tested my own slightly controversial preferred settings).
Specific colours can’t be assigned to particular uses.
Would be good to use more than 5 colours if that many are generated.

Details

First part of convert.sh (up to line 16) calls colours.py (the downloaded script that converts hex colour codes to Xterm ones) for each colour listed in the wal output file, ~/.cache/wal/colors, and outputs the result to a file.

convert.sh then calls strip.py, which strips each line of this file to the actual Xterm colour code.

convert.sh removes duplicate lines from this file, and then calls pad.py, which assigns the list of colours to shell variables to be called in .zshrc.

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