diff --git a/build-aux/fedora-git.spec b/build-aux/fedora-git.spec
index 18ceaa82..8b22a9c9 100644
--- a/build-aux/fedora-git.spec
+++ b/build-aux/fedora-git.spec
@@ -120,7 +120,6 @@ install -Dpm 0644 ./completions/_portprotonqt -t %{buildroot}%{zsh_completions_d
 %{_datadir}/mime/packages/ru.linux_gaming.PortProtonQt.xml
 %{_datadir}/portproton/scripts/
 %{_datadir}/portproton/conf/
-%{_datadir}/portproton/img/
 %{bash_completions_dir}/portprotonqt
 %{fish_completions_dir}/portprotonqt.fish
 %{zsh_completions_dir}/_portprotonqt
diff --git a/build-aux/fedora.spec b/build-aux/fedora.spec
index 3fa2c6aa..88ff4fed 100644
--- a/build-aux/fedora.spec
+++ b/build-aux/fedora.spec
@@ -118,7 +118,6 @@ install -Dpm 0644 ./completions/_portprotonqt -t %{buildroot}%{zsh_completions_d
 %{_datadir}/mime/packages/ru.linux_gaming.PortProtonQt.xml
 %{_datadir}/portproton/scripts/
 %{_datadir}/portproton/conf/
-%{_datadir}/portproton/img/
 %{bash_completions_dir}/portprotonqt
 %{fish_completions_dir}/portprotonqt.fish
 %{zsh_completions_dir}/_portprotonqt
diff --git a/build-aux/share/portproton/img/Panzar.png b/build-aux/share/portproton/img/Panzar.png
deleted file mode 100644
index 2c9d089c..00000000
Binary files a/build-aux/share/portproton/img/Panzar.png and /dev/null differ
diff --git a/build-aux/share/portproton/img/WorldOfSeaBattleClient.png b/build-aux/share/portproton/img/WorldOfSeaBattleClient.png
deleted file mode 100644
index e04140ed..00000000
Binary files a/build-aux/share/portproton/img/WorldOfSeaBattleClient.png and /dev/null differ
diff --git a/build-aux/share/portproton/scripts/functions_helper b/build-aux/share/portproton/scripts/functions_helper
index 370233d7..b4c87d41 100755
--- a/build-aux/share/portproton/scripts/functions_helper
+++ b/build-aux/share/portproton/scripts/functions_helper
@@ -135,8 +135,10 @@ rm_from_array () {
 }
 
 fatal () {
-    #TODO
-    pw_notify_send -i error "$@"
+    if [[ -z "$*" ]] ; then
+        set -- "Fatal error"
+    fi
+    python_module dbus_tools notify -i error "$@" &>/dev/null
     print_error "$@"
     stop_portproton
     exit 1
@@ -563,48 +565,6 @@ var_ld_library_path_update () {
     fi
 }
 
-# GUI NOTIFY SEND
-pw_notify_send () {
-    local icon title body app timeout OPTIND
-    app="ru.linux_gaming.PortProtonQt"
-    timeout="5000"
-    OPTIND="1"
-    while getopts a:i:t: opt ; do
-        case "$opt" in
-            a)
-                app=$OPTARG
-                ;;
-            i)
-                case "$OPTARG" in
-                    info) local OPTARG="${PORT_IMG_PATH}/notify/info.svg";;
-                    warning) local OPTARG="${PORT_IMG_PATH}/notify/warning.svg";;
-                    error) local OPTARG="${PORT_IMG_PATH}/notify/error.svg";;
-                esac
-                icon=$OPTARG
-                ;;
-            t)
-                timeout=$OPTARG
-                ;;
-            *)
-                echo "usage: $0
-                [-a] name application (PortProtonQt default)
-                [-i] info, warning, error (none default)
-                [-t] timeout in ms (5000 default)" >&2
-                return 1
-                ;;
-        esac
-    done
-    shift $(( OPTIND - 1 ))
-    [[ "$1" == "--" ]] && shift
-    title="$1" ; shift
-    body="$*"
-
-    python_module dbus_tools notify \
-        -a "$app" -i "$icon" -t "$timeout" -- "$title" "$body" &>/dev/null
-    return 0
-}
-export -f pw_notify_send
-
 check_gamescope_session () {
     if [[ -n "$GAMESCOPE_IN_USE" ]]
     then [[ "$GAMESCOPE_IN_USE" == 1 ]] && return 0 || return 1
@@ -2331,7 +2291,7 @@ pw_create_gui_png () {
 pw_create_unique_exe () {
     BASEDIR_GAME="$(dirname "$PW_EXE_FILE")"
     if [[ -d "$BASEDIR_GAME" ]] ; then
-        pushd "$BASEDIR_GAME" || fatal
+        pushd "$BASEDIR_GAME" || fatal "Failed to enter game directory: $BASEDIR_GAME"
         BASENAME_GAME_EXE="$(basename "$PW_EXE_FILE")"
         if [[ -n "$1" ]] ; then
             BASENAME_GAME="$(basename "$1" .exe).exe"
@@ -2344,7 +2304,7 @@ pw_create_unique_exe () {
             print_warning "There are no arguments for creating a symbolic link! Skip it..."
         fi
         try_remove_file "${PW_EXE_FILE}.ppdb"
-        popd || fatal
+        popd || fatal "Failed to return from game directory: $BASEDIR_GAME"
     fi
 }
 
diff --git a/build-aux/share/portproton/scripts/start.sh b/build-aux/share/portproton/scripts/start.sh
index 4dc364ad..bca3bfe0 100755
--- a/build-aux/share/portproton/scripts/start.sh
+++ b/build-aux/share/portproton/scripts/start.sh
@@ -19,7 +19,6 @@ else
     PORT_SCRIPTS_PATH="$(dirname "$(realpath "$0")")"
 fi
 
-PORT_IMG_PATH="$(dirname "$PORT_SCRIPTS_PATH")/img"
 PORT_CONF_PATH="$(dirname "$PORT_SCRIPTS_PATH")/conf"
 
 if [[ -z "$PORT_DATA_PATH" ]] ; then
@@ -55,7 +54,7 @@ else
     export PW_FIND_PPDB=1
 fi
 
-export PORT_SCRIPTS_PATH PORT_IMG_PATH PORT_DATA_PATH PORT_CONF_PATH
+export PORT_SCRIPTS_PATH PORT_DATA_PATH PORT_CONF_PATH
 export PW_LOG_FILE="${PORT_DATA_PATH}/PortProton.log"
 
 # shellcheck source=/dev/null
@@ -148,7 +147,7 @@ create_new_dir "${PORT_DATA_PATH}/data/prefixes/DEFAULT"
 create_new_dir "${PORT_DATA_PATH}/data/prefixes/DOTNET"
 try_force_link_dir "${PORT_DATA_PATH}/data/prefixes" "${PORT_DATA_PATH}"
 
-pushd "${PORT_DATA_PATH}/data/prefixes/" 1>/dev/null || fatal
+pushd "${PORT_DATA_PATH}/data/prefixes/" 1>/dev/null || fatal "Failed to enter prefixes directory"
 for pfx_dir in ./* ; do
     [[ -d "$pfx_dir" ]] || continue
     pfx_dir_new="${pfx_dir//[[:blank:]]/_}"
@@ -156,7 +155,7 @@ for pfx_dir in ./* ; do
         mv -- "${PORT_DATA_PATH}/data/prefixes/$pfx_dir" "${PORT_DATA_PATH}/data/prefixes/${pfx_dir_new^^}"
     fi
 done
-popd 1>/dev/null || fatal
+popd 1>/dev/null || fatal "Failed to return from prefixes directory"
 
 create_new_dir "${PORT_WINE_TMP_PATH}"/gecko
 create_new_dir "${PORT_WINE_TMP_PATH}"/mono
@@ -164,12 +163,12 @@ create_new_dir "${PORT_WINE_TMP_PATH}"/mono
 export PW_VULKAN_DIR="${PORT_WINE_TMP_PATH}/VULKAN"
 create_new_dir "${PW_VULKAN_DIR}"
 
-cd "${PORT_SCRIPTS_PATH}" || fatal
+cd "${PORT_SCRIPTS_PATH}" || fatal "Scripts directory not found: ${PORT_SCRIPTS_PATH}"
 
 # shellcheck source=/dev/null
 source "${PORT_SCRIPTS_PATH}/var"
 # HACK: Avoid inheriting a system scripts cwd in pressure-vessel.
-cd "${XDG_DATA_HOME:-$HOME}" || fatal
+cd "${XDG_DATA_HOME:-$HOME}" || fatal "Data directory not found: ${XDG_DATA_HOME:-$HOME}"
 
 [[ ! -f "$VKBASALT_CONFIG_FILE" ]] && cp -f "${PORT_CONF_PATH}/vkBasalt.conf" "$VKBASALT_CONFIG_FILE"
 [[ ! -f "$DXVK_CONFIG_FILE" ]] && cp -f "${PORT_CONF_PATH}/dxvk.conf" "$DXVK_CONFIG_FILE"
@@ -472,7 +471,7 @@ Usage examples:
     --winecmd)
         get_wine_and_pfx "$2" "$3"
         start_portproton
-        cd "${PORT_DATA_PATH}/data/prefixes/${PW_PREFIX_NAME}/drive_c" || fatal
+        cd "${PORT_DATA_PATH}/data/prefixes/${PW_PREFIX_NAME}/drive_c" || fatal "Prefix drive_c directory not found"
         PW_USE_TERMINAL=1 pw_run cmd
         stop_portproton
         ;;
diff --git a/meson.build b/meson.build
index 76831c0d..b438a324 100644
--- a/meson.build
+++ b/meson.build
@@ -111,11 +111,6 @@ install_subdir(
   install_dir: datadir / 'portproton',
 )
 
-install_subdir(
-  'build-aux/share/portproton/img',
-  install_dir: datadir / 'portproton',
-)
-
 install_subdir(
   'build-aux/share/portproton/scripts/portwine_db',
   install_dir: datadir / 'portproton' / 'scripts',
diff --git a/portprotonqt/scripts_utils/dbus_tools.py b/portprotonqt/scripts_utils/dbus_tools.py
index e738d7c5..4cc9d5d0 100644
--- a/portprotonqt/scripts_utils/dbus_tools.py
+++ b/portprotonqt/scripts_utils/dbus_tools.py
@@ -11,7 +11,9 @@ from typing import Any, cast
 from dbus_fast import BusType, DBusError, Message, Variant
 from dbus_fast.aio import MessageBus
 
+from portprotonqt.config import ui_config
 from portprotonqt.logger import get_logger
+from portprotonqt.theme_manager import ThemeManager, load_theme
 
 
 logger = get_logger(__name__)
@@ -347,6 +349,17 @@ async def _main() -> int:
     args = parse_args()
     try:
         if args.command == "notify":
+            if args.icon in {"info", "warning", "error"}:
+                theme_name = ui_config.get_theme()
+                theme_manager = ThemeManager()
+                load_theme(theme_name)
+                icon_path = theme_manager.get_icon(
+                    args.icon,
+                    theme_name,
+                    as_path=True,
+                )
+                if isinstance(icon_path, str):
+                    args.icon = icon_path
             request = NotificationRequest(
                 args.app,
                 args.icon,
diff --git a/build-aux/share/portproton/img/notify/error.svg b/portprotonqt/themes/standart/images/notify/error.svg
similarity index 100%
rename from build-aux/share/portproton/img/notify/error.svg
rename to portprotonqt/themes/standart/images/notify/error.svg
diff --git a/build-aux/share/portproton/img/notify/info.svg b/portprotonqt/themes/standart/images/notify/info.svg
similarity index 100%
rename from build-aux/share/portproton/img/notify/info.svg
rename to portprotonqt/themes/standart/images/notify/info.svg
diff --git a/build-aux/share/portproton/img/notify/warning.svg b/portprotonqt/themes/standart/images/notify/warning.svg
similarity index 100%
rename from build-aux/share/portproton/img/notify/warning.svg
rename to portprotonqt/themes/standart/images/notify/warning.svg