Thanks. The volume indicator still seems a bit off to me when you get to the loud end, but in the end, there is a limitation with the amount of space available. (I now understand why a growing triangular shape often is used for volume.) I also wanted it to switch back and forth between the graphic and a numerical value for volume, but the location of the graphic doesn't allow that due to the spacing for the font.
I enjoy the battery indicator (and it was fun figuring this out, as a mental exercise), as it does what the default status bar battery indicator does: when charging, it shows the current level and then "grows" to the full battery image, to indicate the charging state. It also reverses that at the low end: it shows the low battery level, and then flashes (calmly) to an empty battery picture, to remind one to recharge.