Graphical Battery Widget showing the exact battery level in 1x1 space.
A "battery light" is a battery residual quantity widget.
Light will become weak if residual quantity decreases.
If some are arranged, it is beautiful so that it may be a star.
If indication etc. are got, it will become a hint of future work.
Thank you for your consideration.
Fixes issue caused by bug in 1.6
It is the addition s about battery information page.