Os arquivos que definem o layout dos painéis estão nos painéis ~ / .config / lxpanel //. Cada arquivo no diretório define um painel. Na inicialização, todos os painéis definidos nesses arquivos são carregados. O arquivo de configuração padrão é exibido abaixo. Acabei de colar a parte que eu acho que você precisará editar.
> # Global section: defines appearance and behavior of this panel.
> Global
> {
> edge=bottom # The edge this panel attaches to
> allign=left # alignment: left/center/right
> margin=0 # margin: margin to the edge of the whole screen
> widthtype=percent # percent/pixel
> width=100 # width of the panel: The unit used here is according to widthtype.
> height=26 # height of the panel
> transparent=0 # use (pseudo-)transparent background: on=1, off=0
> tintcolor=#000000 # color blended with the backgroud when transparency is used.
> alpha=0 # alpha value used to blend tintcolor with background.
> setdocktype=1 # ask the window manager to treat the panel as a dock.
> setpartialstrut=1 # ask the window manager to reserve the space for the panel and not to cover it with maximized windows
> usefontcolor=1 # use customize colors for the text instead of that defined in system theme.
> fontcolor=#ffffff # color of text on the panel (Currently this is only supported by clock applet)
> background=1 # use customize image to draw the background of the panel. (cannot be used with transparent)
> backgroundfile=/usr/share/lxpanel/images/background.png # The image file used.
> }
Então, você precisará editar a variável allign .
Espero que isso ajude