Progress Ring radius calculation: High track-width results in ring getting smaller

[Xyz3R]

Describe the bug

The progress ring gets smaller with increasing track-width values. At some point it disappears completely.

To Reproduce

Use a high --track-width on a progress ring.

Demo

https://codepen.io/xyz3r/pen/yLPBzBL?editors=1000

Screenshots

see codepen.

Browser / OS

• all

Additional information

I found that the radius for the track is calculated the wrong way:
Current calculation: calc(var(--size) / 2 - var(--track-width) * 2)
Notice that the track width is subtracted twice. However, it should actually be subtracted 0.5 times. Changing the formula to
calc(var(--size) / 2 - var(--track-width) * 0.5) fixes the described bug.

[claviska]

Good catch, and thanks for the fix. I've updated it in fd43cb4 and verified the size remains the same.