Frame each meter tile in a dashboard-style card (a rounded rectangle with a subtle border) and shrink the dial to fit the title and value text inside it.
Color for the Fill color of the dashboard card frame drawn behind each meter tile when meterCard is on (and of the card meterType). When false the frame uses meterBackground (default). Themeable: cxdark and cxblue override it with their own panel background so the card blends into a dark page.
Color for the Border color of the dashboard card frame drawn behind each meter tile when meterCard is on (and of the card meterType). When false the frame uses xAxisGridMajorColor (default). Themeable: cxdark and cxblue set it to their own panel background so the border blends into a dark page.
For a ring meter: render a selection-aware progress ring - a greyish full-circle track with a solid accent arc sized to the fraction of records currently selected (via broadcast), and the selected count centered. When no selection is active the ring reads full.
For a ring meter: the centered value font is sized to fit this many digits, so rings of the same tile size show the same font regardless of each value's length (a longer value still shrinks to fit). Set to 0 to size each ring to its own value instead.
A number between 0.1 and 1 to adjust the thickness of the vertical, horizontal and state meters as a fraction of the available space, so the meter always stays inside the canvas