Small feature requests for pixel-perfectionistas

[4poc]

The OCD pixel-perfectionist in me would like those features..

• (i3_workspace) -focuscolor changes the background of workspace selectors, there should be the ability to change the focus foreground/font color as well (to contrast light background colors).
• (i3_workspace) ability to change the width of each workspace selector (my font is 5 width, the boxes are 12px, can't center that)
• (cpu) -height or similar to make the bar height smaller. (-height does do something, but it doesn't vertically center)
• (battery) again made the battery icon smaller, but the character in the battery icon is not centered.
• (battery) show minutes left instead of/ in addition to percentage

Thx!
/edit: screenshot: http://zeitgeist.li/asset/201309/zg.ztm6.png