I improved/implement a new icons theme for Beam (the Mail client: https://depot.haiku-os.org/#/pkg/beam/haikuports/1/2alpha/-/-/4/x86_gcc2?bcguid=bc92-KMSK): I replaced the old folder icon with the one used in Haiku, I changed the “mail new” and the “mail read” icons, I updated the attachments icons and the “tofu” and “spam” icons, to make Beam look more modern and integrated to the Haiku’s style.
You can download them from here:
EDIT: (sorry, wrong link)
The following is the right one:
How to install/use these icons on Beam:
Unzip _iconset_32_haiku.zip zip archive in /boot/home/config/settings/Beam ;
then open Beam, go to the preferences panel (File > Preferences) and inside the “General” section, click on the button “Select Icon Folder”, browse to /boot/home/config/settings/Beam and select the folder named iconset 32 haiku. Then press “Save” in the preference panel.
That’s all: enjoy them