Change the color of borders from within a script

[mrjpaxton]

Hey everyone,

Firstly, I already know it's possible to override the FG text color and BG color by specifying the 3rd and 4th lines with printf/echo doing something like this:

~/.local/share/i3blocks/volume

#!/bin/sh

#set -x

# Define output variables for Pipewire
volsrc="wpctl get-volume @DEFAULT_AUDIO_SINK@"
volume=$(eval "$volsrc" | awk '{print int($2*100)}')
muted=$(eval "$volsrc" | awk '{print $3}')

if [ "$muted" = "[MUTED]" ]; then
    printf "MUTE\n"
    printf "MUTE\n"
    printf "#ff0000\n"
    printf "#000000"
    exit
fi

# Print volume percentage levels (short then long format)
printf "%s%%\n" "$volume"
printf "%s%%\n" "$volume"

The block config is this:

~/.config/i3blocks/config

command=$SCRIPT_DIR/$BLOCK_NAME
separator_block_width=12
separator=true
markup=none
border_top=0
border_left=0
border_right=0
border_bottom=2

...

[volume]
label=VOL:
interval=1
border=#808080

But after learning about the borders, what I want to do next is maybe something more advanced like have the script change the color of the borders from within the script programmatically. Is there a way to do that? Do I need to switch to something more advanced like the JSON markup to be able to do that sort of thing?