xfce4-power-manager 1.5, icon theme issue

[Andrea]

i'm testing xfce4-power-manager 1.5 on archlinux, but i've a problem 
with icon theme.
i'm using numix circle icon theme, but xfce4-power-manager 1.5 not use 
this theme, but use gnome default theme.

i've tried with other icons theme and the only theme that works with 
this new version of xpm, are gnome, high contrast and elementary xfce.
is a problem of xpm or a problem of icon pack? if is a problem of icon 
pack, how can i solve it?? how is the correct name for icon of xpm?

thanks

Il 26/05/2015 12:00, xfce4-dev-request at xfce.org ha scritto:
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>     1. ANNOUNCE: xfce4-power-manager 1.5.0 released (Simon Steinbei?)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 25 May 2015 23:45:45 +0200
> From: Simon Steinbei? <simon at xfce.org>
> To: xfce-announce at xfce.org, xfce4-dev at xfce.org, xfce at xfce.org
> Subject: ANNOUNCE: xfce4-power-manager 1.5.0 released
> Message-ID: <20150525234545.498a041d at jarvis>
> Content-Type: text/plain; charset=UTF-8
>
> xfce4-power-manager 1.5.0 is now available for download from
>
>    http://archive.xfce.org/src/xfce/xfce4-power-manager/1.5/xfce4-power-manager-1.5.0.tar.bz2
>    http://archive.xfce.org/src/xfce/xfce4-power-manager/1.5/xfce4-power-manager-1.5.0.tar.bz2.md5
>    http://archive.xfce.org/src/xfce/xfce4-power-manager/1.5/xfce4-power-manager-1.5.0.tar.bz2.sha1
>    http://archive.xfce.org/src/xfce/xfce4-power-manager/1.5/xfce4-power-manager-1.5.0.tar.bz2.sha256
>
>
> What is xfce4-power-manager?
> ============================
>
> This software is a power manager for the Xfce desktop, Xfce power
> manager manages the power sources on the computer and the devices that
> can be controlled to reduce their power consumption (such as LCD
> brightness level, monitor sleep). In addition, xfce4-power-manager
> provides a set of freedesktop-compliant DBus interfaces to inform other
> applications about current power level so that they can adjust their
> power consumption, and it provides the inhibit interface which allows
> applications to prevent automatic sleep actions via the power manager;
> as an example, the operating system?s package manager should make use
> of this interface while it is performing update operations.
>
> Website:
>    http://docs.xfce.org/xfce/xfce4-power-manager/start
>
>
> Release notes for 1.5.0
> =======================
>
> New development release of xfce4-power-manager.
> This release marks the transition to several new
> technologies. Consequently we're looking forward to
> more testers (and supposedly bugreports) with this
> first release.
>
> * Port to Gtk3 (Eric, Simon)
> * Port to gdbus (Peter)
> * Drop LXDE panel plugin
> * Bumped dependencies:
>   - UPower>= 0.99
>   - Gtk3 >= 3.14
>   - libxfce4ui-2
>
> * Miscellaneous improvements:
>   - The settings dialog has been ported to GtkApplication
>   - The panel plugin now uses UPower's icon names
>     directly and is consequently compatible with all
>     major icon themes out of the box
>   - The panel plugin uses symbolic icons
>   - The systray icon uses colored icons
>   - The settings dialog now has a unique icon name
>     (xfce4-power-manager-settings)
>
> * And finally some bug fixes:
>   - Fix for panel icon on Desktop systems (Bug #11840)
>   - Never use symbolic icons for the systray (Bug #11756)
>   - Look up the schema for light-locker's settings recursively (Bug #11488)
>   - Don't crash when UPower returns "" for the icon-name (Bug #11756)
>
> * Translation updates:
> Asturian, Chinese (China), Chinese (Taiwan), Czech,
> French, German, Greek, Indonesian, Italian, Japanese,
> Kazakh, Korean, Lithuanian, Malay, Norwegian Bokm?l,
> Polish, Portuguese, Portuguese (Brazilian), Russian,
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