trayer --transparent true --alpha 255 is not transparent

[skewty]

trayer --transparent true --alpha 255 gives me a solid black background in Elementary Juno 5.0b.

Same issue reported here: https://bbs.archlinux.org/viewtopic.php?id=39723

[Julioevm]

same problem here

[fleutot]

Same issue, even without compositor.

[afaikiac]

trayer --transparent true --alpha 255 gives me a solid black background in Elementary Juno 5.0b.

Same issue reported here: https://bbs.archlinux.org/viewtopic.php?id=39723

It's not issue, it's feature :) Trayer uses an inverted transparency value when compared to xmobar, for example. This means that a value of 0 means absolute transparency. For my xmonad config I use the value (255 - <transparency of xmobar>). To simplify, I use the following command:

# /bin/bash
--transparent true --alpha $(expr 255 - $(cat ~/.config/xmobar/xmobarrc | grep alpha | cut -d = -f2 | cut -d ' ' -f2))