Properties to Consider Adding

[ataylor32]

Some of these are commonly used these days and some of these are pretty obscure.

appearance
backdrop-filter
background-blend-mode
caret-color
clip-path
contain
counter-set
filter
font-feature-settings
font-kerning
font-optical-sizing
gap
hyphens
image-orientation
image-rendering
isolation
line-break
mix-blend-mode
object-fit
object-position
offset
offset-distance
offset-path
offset-rotate
orphans
overflow-anchor
overflow-wrap
overscroll-behavior
overscroll-behavior-x
overscroll-behavior-y
place-content
place-items
place-self
pointer-events
row-gap
ruby-position
scroll-behavior
scroll-margin
scroll-padding
scroll-snap-align
scroll-snap-stop
scroll-snap-type
shape-image-threshold
shape-margin
shape-outside
text-combine-upright
text-decoration-skip-ink
text-orientation
text-size-adjust
text-underline-position
touch-action
transform-box
unicode-bidi
user-select
widows
will-change
writing-mode

[brandon-rhodes]

Wow! That’s quite a list; thanks for putting it together. As currently my work doesn't involve CSS, it will probably be at least a few months before I would have time to sit down and research each property and figure out where it would go in the Concentric scheme. I would be open to a PR, however, if someone wanted to try making a first try at it. I wonder, given how long the list is getting, if there should be several versions of the list in this project, one for each major version of CSS?