* GS 3.34 compatibility for barLevel, see for example status/volume.js StreamSlider.getLevel():
* 3.32 : "return 100 * this._stream.volume / this._control.get_vol_max_norm();"
* 3.34 : "return this._stream.volume / this._control.get_vol_max_norm();"
* allow 0 px lineWidth because stroke lines cannot have color with some transparency
* use warning color in OSD and drawing menu when lineWidth is 0 px
* PanelMenu.Button actor
* PopupMenu.PopupBaseMenuItem, PopupMenu.PopupSwitchMenuItem and PopupMenu.PopupSeparatorMenuItem actor
* Slider.Slider actor and 'value-changed' signal
* PopupMenu.PopupMenuManager init params
* 'org.gnome.settings-daemon.plugins.media-keys' setting values : string -> array of strings
use Gio FileIcon instead of Pixbuf because St.Icons made with Pixbuf are
not themable
replace 'stroke' icons with 'fill' icons
bind fill and dashedLine icons with properties
In test of gnome-shell 32 (in VM), 'style-changed' was regularly emitted
during drawing, so all 'this.current...' style properties was
initialized and it was impossible to select style with 'Ctrl+...'
shortcuts.
Now style is gathered on drawing mode entered, which is by the way more
frugal.
Keep watch possible regressions.
1. in removeArea, remove area container from the right parent and do not
remove and destroy helper since helper is child of container (15556e40f4)
2. do not set area and helper position to monitor position value, since their position is relative to the container (that already have the monitor position)
abakkk