Eu modifiquei o tema do ambiente para barras de ferramentas escuras (incluindo nautilus, banshee etc.) e algumas outras alterações como barras de rolagem menores. Minhas mudanças são baseadas no tema Wasp (veja gnome-look).
Parece com isso: 
Vocêpodeencontrartodootemaaqui: tema do ambiente com barra de ferramentas escura
Os ícones são uma mistura pessoal de AwOken e Faenza. Eu posso publicá-lo, se você estiver interessado.
Meu gtkrc modificado para ambiance:
gtk-color-scheme = "base_color:#ffffff\nfg_color:#4c4c4c\ntooltip_fg_color:#ffffff\nselected_bg_color:#7EA2B8\nselected_fg_color:#FFFFFF\ntext_color:#3C3C3C\nbg_color:#F2F1F0\ntooltip_bg_color:#000000\nlink_color:#7EA2B8"
gtk-icon-sizes = "panel-menu=22,22:gtk-button=16,16"
gtk-auto-mnemonics = 1
style "default" {
xthickness = 1
ythickness = 1
#######################
# Style Properties
#######################
GtkWidget::new-tooltip-style = 1
GtkButton::child-displacement-x = 1
GtkButton::child-displacement-y = 1
GtkButton::default-border = { 0, 0, 0, 0 }
GtkCheckButton::indicator-size = 16
GtkPaned::handle-size = 0 #MSE
GtkRange::trough-border = 0
GtkRange::slider-width = 14
GtkRange::stepper-size = 16
GtkRange::trough-under-steppers = 1
GtkScale::trough-border = 0
GtkScale::slider-width = 23
GtkScale::slider-length = 14
GtkScale::trough-side-details = 1
GtkScrollbar::activate-slider = 1
GtkScrollbar::trough-border = 0
GtkScrollbar::stepper-size = 0
GtkScrollbar::slider-width = 7
GtkScrollbar::min-slider-length = 31
GtkScrollbar::has-backward-stepper = 0
GtkScrollbar::has-forward-stepper = 0
GtkScrolledWindow::scrollbar-spacing = 2
GtkScrolledWindow::scrollbars-within-bevel = 1
GtkMenuBar::internal-padding = 0
GtkExpander::expander-size = 11
GtkToolbar::internal-padding = 1
GtkToolbar::shadow-type = GTK_SHADOW_NONE
# GtkTreeView::expander-size = 7
# GtkTreeView::vertical-separator = 0
# GtkTreeView::odd-row-color = shade (0.96, @base_color) # MSE
GtkNotebook::tab-overlap = -1
GtkMenu::horizontal-padding = 0
GtkMenu::vertical-padding = 0
WnckTasklist::fade-overlay-rect = 0
# The following line hints to gecko (and possibly other appliations)
# that the entry should be drawn transparently on the canvas.
# Without this, gecko will fill in the background of the entry.
GtkEntry::honors-transparent-bg-hint = 1
GtkEntry::state-hint = 0
GtkEntry::progress-border = { 2, 2, 2, 2 }
GtkProgressBar::min-horizontal-bar-height = 14
GtkProgressBar::min-vertical-bar-width = 14
GtkImage::x-ayatana-indicator-dynamic = 1
GtkMenuBar::window-dragging = 1
GtkWidget::link-color = @link_color
GtkWidget::visited-link-color = @text_color
####################
# Color Definitions
####################
bg[NORMAL] = @bg_color
bg[PRELIGHT] = shade (1.02, @bg_color)
bg[SELECTED] = @selected_bg_color
bg[INSENSITIVE] = shade (0.95, @bg_color)
bg[ACTIVE] = shade (0.9, @bg_color)
fg[NORMAL] = @fg_color
fg[PRELIGHT] = @fg_color
fg[SELECTED] = @selected_fg_color
fg[INSENSITIVE] = darker (@bg_color)
fg[ACTIVE] = @fg_color
text[NORMAL] = @text_color
text[PRELIGHT] = @text_color
text[SELECTED] = @selected_fg_color
text[INSENSITIVE] = shade (0.8, @bg_color)
text[ACTIVE] = darker (@text_color)
base[NORMAL] = @base_color
base[PRELIGHT] = shade (0.98, @bg_color)
base[SELECTED] = @selected_bg_color
base[INSENSITIVE] = shade (0.97, @bg_color)
base[ACTIVE] = shade (0.94, @bg_color)
engine "murrine" {
contrast = 0.6
arrowstyle = 2
reliefstyle = 3
highlight_shade = 1.0
glazestyle = 0
default_button_color = shade (1.1, @selected_bg_color)
gradient_shades = {1.1, 1.0, 1.0, 0.9}
roundness = 4
lightborder_shade = 1.26
lightborderstyle = 1
listviewstyle = 2
progressbarstyle = 0
colorize_scrollbar = TRUE #FALSE #MSE
menubaritemstyle = 1
menubarstyle = 1
menustyle = 2
focusstyle = 3
handlestyle = 1
sliderstyle = 3
scrollbarstyle = 0 #2
stepperstyle = 3
# rgba = TRUE
}
}
style "dark"
{
fg[NORMAL] = "#dfdbd2"
fg[PRELIGHT] = "#fff"
fg[ACTIVE] = "#fff"
fg[SELECTED] = "#fff"
fg[INSENSITIVE] = shade (0.5, "#3c3b37")
bg[NORMAL] = "#3c3b37"
bg[PRELIGHT] = shade (1.0, "#4D4C48")
bg[ACTIVE] = shade(0.94, "#3c3b37")
bg[SELECTED] = shade(1.0, @selected_bg_color)
bg[INSENSITIVE] = "#3c3b37"
base[NORMAL] = "#3c3b37" #"#333230"
base[PRELIGHT] = shade (0.95, @bg_color)
base[ACTIVE] = shade (0.55, @bg_color)
base[SELECTED] = shade (1.0, @selected_bg_color)
base[INSENSITIVE] = @bg_color
text[NORMAL] = "#dfdbd2"
text[PRELIGHT] = @base_color
text[ACTIVE] = @base_color
text[SELECTED] = @base_color
text[INSENSITIVE] = mix (0.5, @bg_color, "#3c3b37")
}
style "narrow" {
xthickness = 1
ythickness = 1
}
style "wide" {
xthickness = 2
ythickness = 2
}
style "wider" {
xthickness = 3
ythickness = 3
}
style "entry" {
xthickness = 3
ythickness = 3
engine "murrine" {
}
}
style "vscale" {
}
style "hscale" {
}
style "button" = "wider"
{
bg[NORMAL] = shade (1.10, @bg_color)
bg[PRELIGHT] = mix(0.82,shade (1.1, @bg_color),@selected_bg_color)
bg[ACTIVE] = shade (0.85, @bg_color)
engine "murrine"
{
border_shades = { .8, .5} # draw a gradient on the border.
#border_colors = { "#D9D4CC", "#D9D4CC" }
border_colors = { @bg_color, @bg_color}
contrast = 1.4
lightborder_shade = 1.06
}
}
style "notebook_button" {
xthickness = 3
ythickness = 3
bg[NORMAL] = @bg_color
bg[PRELIGHT] = shade (1.04, @bg_color)
bg[ACTIVE] = shade (0.96, @bg_color)
bg[INSENSITIVE] = @bg_color
engine "murrine" {
textstyle = 1
border_shades = {0.95, 0.88}
glowstyle = 5
glow_shade = 1.02
lightborder_shade = 1.32
}
}
style "spinbutton" = "notebook_button" {
xthickness = 4
engine "murrine" {
}
}
style "scrollbar" = "button" { #"button"
xthickness = 2
ythickness = 2
bg[NORMAL] = "#3c3b37"
bg[PRELIGHT] = shade (1.10, "#3c3b37")
bg[ACTIVE] = shade (1.10, "#3c3b37")
engine "murrine"
{
border_shades = {0.95, 0.90}
roundness = 20
contrast = 1.0
trough_shades = {0.92, 0.98}
lightborder_shade = 1.3
glowstyle = 5
glow_shade = 1.02
gradient_shades = {1.2, 1.0, 1.0, 0.86}
trough_border_shades = {0.9, 0.98}
}
}
style "hscrollbar" {
}
style "vscrollbar" {
}
style "scale" = "button" {
bg[NORMAL] = @bg_color
bg[PRELIGHT] = shade (1.06, @bg_color)
bg[ACTIVE] = shade (0.94, @bg_color)
engine "murrine" {
contrast = 0.6
border_shades = {0.9, 0.8}
roundness = 5
lightborder_shade = 1.32
gradient_shades = {1.1, 1.0, 1.0, 0.8}
handlestyle = 2
trough_border_shades = {0.9, 1.4}
glow_shade = 1.0
# reliefstyle = 2
# shadow_shades = { 1.0, 0.9 }
}
}
style "notebook_bg" {
bg[NORMAL] = shade (1.02, @bg_color)
bg[ACTIVE] = shade (0.97, @bg_color)
fg[ACTIVE] = mix (0.8, @fg_color, shade (0.97, @bg_color))
}
# The color is changed by the notebook_bg style, this style
# changes the x/ythickness
style "notebook" {
xthickness = 2
ythickness = 2
engine "murrine" {
roundness = 3
contrast = 0.8
focusstyle = 2
lightborder_shade = 1.16
gradient_shades = {1.1, 1.0, 1.0, 0.68}
}
}
style "statusbar" {
engine "murrine" {
contrast = 1.2
}
}
style "comboboxentry" = "notebook_button" {
xthickness = 3
ythickness = 3
engine "murrine" {
textstyle = 1
glowstyle = 5
glow_shade = 1.02
}
}
style "menubar" = "dark" {
engine "murrine" {
textstyle = 2
text_shade = 0.33
gradient_shades = {1.0, 1.0, 1.0, 1.0}
lightborder_shade = 1.23
}
}
style "dark-toolbar" = "dark"
{
xthickness = 3
ythickness = 3
bg[NORMAL] = "#3c3b37" #"#343330"
bg[PRELIGHT] = shade (0.65, @selected_bg_color)
bg[SELECTED] = shade (0.35, @bg_color)
bg[ACTIVE] = shade (0.35, @bg_color)
engine "murrine"
{
border_shades = {1.3, 1.1} # draw a gradient on the border.
border_colors = {"#3c3b37", "#3c3b37"}#{ "#343330", "#343330" }
glowstyle = 4
gradient_shades = {1.05,1.0,1.0,0.9}
highlight_shade = 1.1
lightborder_shade = 1.05
reliefstyle = 4 # 0 = flat, 1 = inset, 2 = shadow, = 3 for a gradient on shadow, = 4 for a stronger shadow.
contrast = 1.4
}
}
style "dark-toolbar-sep" = "dark-toolbar"
{ xthickness = 2 }
style "pixmap-dark-toolbar" = "dark-toolbar"
{
xthickness = 1
ythickness = 1
# To-do: make the toolbar recolorable, possibly without using pixmaps
# We only like this because of the top line, anyway.
engine "pixmap"{
image {
function = BOX
file = "toolbar_o.png"
border = {1,1,1,1}
}
image
{
function = HANDLE
overlay_file = "handlebox.png"
overlay_stretch = FALSE
orientation = HORIZONTAL
}
image
{
function = HANDLE
overlay_file = "handlebox.png"
overlay_stretch = FALSE
orientation = VERTICAL
}
image
{
function = VLINE
recolorable = TRUE
file = "blank.png"
}
image
{
function = HLINE
recolorable = TRUE
file = "blank.png"
}
}
}
style "toolbar-button" = "notebook-button" {
engine "murrine" {
}
}
style "menu" = "dark" {
xthickness = 0
ythickness = 0
bg[NORMAL] = "#43423f"
bg[INSENSITIVE] = "#43423f"
fg[INSENSITIVE] = shade (0.54, "#43423f")
engine "murrine"
{
roundness = 0
}
}
style "menu_item" = "menu" {
xthickness = 2
ythickness = 3
fg[PRELIGHT] = @selected_fg_color
engine "murrine"
{
glowstyle = 5
glow_shade = 1.1
border_shades = {0.95, 0.85}
}
}
style "menubar_item" = "menu" {
xthickness = 2
ythickness = 3
engine "murrine" {
gradient_shades = {1.1, 1.0, 1.0, 0.88}
glowstyle = 5
glow_shade = 1.0
border_shades = {1.0, 0.9}
lightborderstyle = 3
lightborder_shade = 1.26
}
}
style "scale_menu_item" = "scale" {
GtkScale::slider-width = 21
GtkScale::slider-length = 13
bg[ACTIVE] = shade(0.98, "#4D4C48")
bg[INSENSITIVE] = shade (0.9, @bg_color)
engine "murrine" {
roundness = 20
border_shades = {1.4, 1.4}
reliefstyle = 0
lightborder_shade = 1.36
}
}
# This style is there to modify the separator menu items. The goals are:
# 1. Get a specific height.
# 2. The line should go to the edges (ie. no border at the left/right)
style "separator_menu_item" {
xthickness = 1
ythickness = 0
GtkSeparatorMenuItem::horizontal-padding = 0
GtkWidget::wide-separators = 1
GtkWidget::separator-width = 1
GtkWidget::separator-height = 7
engine "murrine" {
contrast = 0.6
separatorstyle = 0
}
}
style "separator_tool_item" {
xthickness = 0
ythickness = 1
GtkVSeparator::vertical-padding = 0
GtkWidget::wide-separators = 1
GtkWidget::separator-width = 7
GtkWidget::separator-height = 1
engine "murrine" {
contrast = 0.6
separatorstyle = 0
}
}
style "frame_title" {
fg[NORMAL] = lighter (@fg_color)
}
style "treeview" {
engine "murrine"
{
roundness = 2
lightborder_shade = 1.1
gradient_shades = {1.04, 1.0, 1.0, 0.96}
}
}
style "progressbar" {
xthickness = 1
ythickness = 1
bg[ACTIVE] = shade (0.94, @bg_color)
fg[PRELIGHT] = @selected_fg_color
#bg[SELECTED] = "#cdcdcd"
engine "murrine" {
#trough_shades = {0.98, 1.02}
roundness = 8
lightborderstyle = 1
lightborder_shade = 1.26
border_shades = {0.95, 0.85}
gradient_shades = {1.1, 1.0, 1.0, 0.9}
trough_border_shades = {0.9, 1.4}
}
}
style "progressbar_menu_item" = "progressbar" {
bg[ACTIVE] = shade(0.98, "#4D4C48")
engine "murrine" {
roundness = 0
}
}
# This style is based on the default style, so that the colors from the button
# style are overriden again.
style "treeview_header" = "notebook_button" {
xthickness = 2
ythickness = 1
engine "murrine" {
glazestyle = 1
contrast = 0.8
lightborder_shade = 1.16
textstyle = 1
glow_shade = 1.0
}
}
style "treeview_header_scrolled" = "treeview_header" {
}
style "scrolledwindow" {
engine "murrine" {
contrast = 0.6
}
}
style "radiocheck" = "button" {
text[NORMAL] = shade (0.535, @selected_bg_color)
text[PRELIGHT] = shade(1.06, shade (0.535, @selected_bg_color))
bg[NORMAL] = shade (0.92, @bg_color)
bg[PRELIGHT] = mix (0.2, @selected_bg_color, shade(1.1, @bg_color))
fg[INSENSITIVE] = darker (@bg_color)
fg[ACTIVE] = @fg_color
engine "murrine" {
reliefstyle = 3
gradient_shades = {1.2, 1.0, 1.0, 0.9}
shadow_shades = {0.6, 0.5}
textstyle = 0
}
}
style "tooltips" {
xthickness = 4
ythickness = 4
bg[NORMAL] = @tooltip_bg_color
fg[NORMAL] = @tooltip_fg_color
bg[SELECTED] = "#000000"
engine "murrine" {
rgba = TRUE
}
}
style "infobar" {
engine "murrine" {
}
}
style "nautilus_location" {
bg[NORMAL] = mix (0.60, shade (1.05, @bg_color), @selected_bg_color)
}
style "nautilus-sidepane" {
GtkTreeView::expander-size = 7
GtkTreeView::vertical-separator = 0
GtkWidget::separator-height = 0
GtkTreeView::horizontal-separator = 0 # add extra the padding
GtkTreeView::odd-row-color = @base_color
GtkTreeView::even-row-color = @bg_color #"#CBD9E2"
}
style "calendar" {
xthickness = 0
ythickness = 0
engine "murrine" {
roundness = 0
}
}
style "calendar_menu_item" = "calendar" {
base[NORMAL] = "#605E58"
base[ACTIVE] = "#4b4944"
}
style "iconview" {
engine "murrine" {
roundness = 6
border_shades = {1.16, 1.0}
glow_shade = 1.1
glowstyle = 5
}
}
style "soundfix"
{
}
# Wrokaround style for places where the text color is used instead of the fg color.
style "text_is_fg_color_workaround" {
text[NORMAL] = @fg_color
text[PRELIGHT] = @fg_color
text[SELECTED] = @selected_fg_color
text[ACTIVE] = @fg_color
text[INSENSITIVE] = darker (@bg_color)
}
# Workaround style for menus where the text color is used instead of the fg color.
style "menuitem_text_is_fg_color_workaround" {
text[NORMAL] = "#dfd8c8"
text[PRELIGHT] = @selected_fg_color
text[SELECTED] = @selected_fg_color
text[ACTIVE] = @fg_color
text[INSENSITIVE] = "#99958b"
}
# Workaround style for places where the fg color is used instead of the text color.
style "fg_is_text_color_workaround" {
fg[NORMAL] = @text_color
fg[PRELIGHT] = @text_color
fg[SELECTED] = @selected_fg_color
fg[ACTIVE] = @selected_fg_color
fg[INSENSITIVE] = darker (@bg_color)
}
# Style to set the toolbar to use a flat style. This is because the "New" button in
# Evolution is not drawn transparent. So if there is a gradient in the background it will
# look really wrong.
# See http://bugzilla.gnome.org/show_bug.cgi?id=446953.
style "evo_new_button_workaround" {
}
###############################################################################
# The following part of the gtkrc applies the different styles to the widgets.
###############################################################################
# The default style is applied to every widget
class "GtkWidget" style "default"
class "GtkSeparator" style "narrow" #"wide"
class "GtkFrame" style "narrow" #"wide"
class "GtkCalendar" style "wide"
class "GtkEntry" style "entry"
class "GtkSpinButton" style "spinbutton"
class "GtkScale" style "scale"
class "GtkVScale" style "vscale"
class "GtkHScale" style "hscale"
class "GtkScrollbar" style "scrollbar"
class "GtkHScrollbar" style "hscrollbar"
class "GtkVScrollbar" style "vscrollbar"
class "GtkCalendar" style "calendar"
class "GtkInfoBar" style "infobar"
class "GtkIconView" style "iconview"
# General matching follows. The order is choosen so that the right styles override
# each other. EG. progressbar needs to be more important than the menu match.
widget_class "*<GtkNotebook>" style "notebook_bg"
# This is not perfect, it could be done better.
# (That is modify *every* widget in the notebook, and change those back that
# we really don't want changed)
widget_class "*<GtkNotebook>*<GtkEventBox>" style "notebook_bg"
widget_class "*<GtkNotebook>*<GtkDrawingArea>" style "notebook_bg"
widget_class "*<GtkNotebook>*<GtkLayout>" style "notebook_bg"
widget_class "*<GtkNotebook>*<GtkLabel>" style "notebook_bg"
widget_class "*<GtkScrolledWindow>*" style "scrolledwindow"
# Toolbar default: dark
class "*HandleBox" style "pixmap-dark-toolbar"
class "GtkToolbar" style "pixmap-dark-toolbar"
widget_class "*HandleBox" style "pixmap-dark-toolbar"
widget_class "*<GtkToolbar>.*" style "dark-toolbar"
widget_class "*<GtkToolbar>*<GtkEntry>*" style "pixmap-dark-toolbar"
widget_class "*<GtkButton>" style "button"
widget_class "*<GtkButton>*<GtkLabel>" style "button"
widget_class "*<GtkNotebook>" style "notebook"
widget_class "*<GtkStatusbar>" style "statusbar"
widget_class "*<GtkSpinButton>*" style "spinbutton"
widget_class "*<GtkNotebook>*<GtkButton>" style "notebook_button"
widget_class "*<GtkNotebook>*<GtkButton>*<GtkLabel>" style "notebook_button"
widget_class "*<GtkRadioButton>*" style "radiocheck"
widget_class "*<GtkCheckButton>*" style "radiocheck"
widget_class "*<GtkComboBoxEntry>*" style "comboboxentry"
widget_class "*<GtkCombo>*" style "comboboxentry"
widget_class "*<GtkMenuBar>*" style "menubar"
widget_class "*<GtkMenu>*" style "menu"
widget_class "*<GtkMenuItem>*" style "menu_item"
widget_class "*<GtkSeparatorMenuItem>*" style "separator_menu_item"
widget_class "*<GtkSeparatorToolItem>*" style "separator_tool_item"
widget_class "*<GtkMenuBar>*<GtkMenuItem>*" style "menubar_item"
widget_class "*.<GtkFrame>.<GtkLabel>" style "frame_title"
widget_class "*.<GtkTreeView>*" style "treeview"
widget_class "*<GtkProgress>" style "progressbar"
widget_class "*<GtkMenuItem>.*.<GtkProgressBar>" style "progressbar_menu_item"
widget_class "*<GtkMenuItem>.*.<GtkScale>" style "scale_menu_item"
widget_class "*<GtkMenuItem>.*.<GtkCalendar>" style "calendar_menu_item"
# Treeview headers (and similar stock GTK+ widgets)
widget_class "*.<GtkScrolledWindow>*<GtkTreeView>*" style "treeview_header_scrolled"
widget_class "*.<GtkTreeView>.<GtkButton>" style "treeview_header"
widget_class "*.<GtkCTree>.<GtkButton>" style "treeview_header"
widget_class "*.<GtkList>.<GtkButton>" style "treeview_header"
widget_class "*.<GtkCList>.<GtkButton>" style "treeview_header"
widget_class "*.<GtkTreeView>.<GtkButton>.*<GtkLabel>" style "treeview_header"
widget_class "*.<GtkCTree>.<GtkButton>.*<GtkLabel>" style "treeview_header"
widget_class "*.<GtkList>.<GtkButton>.*<GtkLabel>" style "treeview_header"
widget_class "*.<GtkCList>.<GtkButton>.*<GtkLabel>" style "treeview_header"
# The window of the tooltip is called "gtk-tooltip"
##################################################################
# FIXME:
# This will not work if one embeds eg. a button into the tooltip.
# As far as I can tell right now we will need to rework the theme
# quite a bit to get this working correctly.
# (It will involve setting different priorities, etc.)
##################################################################
widget "gtk-tooltip*" style "tooltips"
##########################################################################
# Following are special cases and workarounds for issues in applications.
##########################################################################
# Workaround for the evolution ETable (bug #527532)
widget_class "*.ETable.ECanvas" style "treeview_header"
# Workaround for the evolution ETree
widget_class "*.ETree.ECanvas" style "treeview_header"
# Special case the nautilus-extra-view-widget
# ToDo: A more generic approach for all applications that have a widget like this.
widget "*.nautilus-extra-view-widget" style : highest "nautilus_location"
widget_class "*NautilusSidePane*" style "nautilus-sidepane"
#widget_class "*NautilusNavigationWindow*" style "nautilus-sidepane"
# Work around for http://bugzilla.gnome.org/show_bug.cgi?id=382646
# Note that this work around assumes that the combobox is _not_ in appears-as-list mode.
widget_class "*.<GtkComboBox>.<GtkCellView>" style "text_is_fg_color_workaround"
# This is the part of the workaround that fixes the menus
widget "*.gtk-combobox-popup-menu.*" style "menuitem_text_is_fg_color_workaround"
# Work around the usage of GtkLabel inside GtkListItems to display text.
# This breaks because the label is shown on a background that is based on the base color.
widget_class "*<GtkListItem>*" style "fg_is_text_color_workaround"
# GtkCList also uses the fg color to draw text on top of the base colors.
widget_class "*<GtkCList>" style "fg_is_text_color_workaround"
# Nautilus when renaming files, and maybe other places.
#widget_class "*<EelEditableLabel>" style "fg_is_text_color_workaround"
# Work around for ubuntu's lucid sound indicator
widget "ido-offscreen-scale" style "soundfix"
# Thickness for indicator menu items
widget "*IdoEntryMenuItem*" style "wide"
# See the documentation of the style.
widget_class "EShellWindow.GtkVBox.BonoboDock.BonoboDockBand.BonoboDockItem*" style "evo_new_button_workaround"
# Includes
include "apps/banshee.rc"
include "apps/chromium.rc"
include "apps/ff.rc"
include "apps/gnome-panel.rc"
include "apps/gnome-terminal.rc"