Ionic-framework: CSS custom properties documentation

[camwiegert]

As theming is now based on CSS custom properties, we need to properly document them. We'll be using comments in the source to do so:

/** @prop --max-width: Max width of the alert */

• [x] action-sheet
• [x] alert
• [x] anchor
• [x] avatar
• [x] back-button
• [x] backdrop
• [x] badge
• [x] button
• [x] buttons
• [x] card-content
• [x] card-header
• [x] card-subtitle
• [x] card-title
• [x] card
• [x] checkbox
• [x] chip-button
• [x] chip-icon
• [x] chip
• [x] col
• [x] content
• [x] datetime
• [x] fab-button
• [x] fab-list
• [x] fab
• [x] footer
• [x] grid
• [x] header
• [x] icon
• [x] img
• [x] infinite-scroll-content
• [x] infinite-scroll
• [x] input
• [x] item-divider
• [x] item-group
• [x] item-option
• [x] item-options
• [x] item-sliding
• [x] item
• [x] label
• [x] list-header
• [x] list
• [x] loading
• [x] menu-button
• [x] menu-toggle
• [x] menu
• [x] modal
• [x] nav
• [x] note
• [x] picker-column
• [x] picker
• [x] popover
• [x] radio-group
• [x] radio
• [x] range-knob
• [x] range
• [x] refresher-content
• [x] refresher
• [x] reorder-group
• [x] reorder
• [x] ripple-effect
• [x] row
• [x] scroll
• [x] searchbar
• [x] segment-button
• [x] segment
• [x] select-option
• [x] select-popover
• [x] select
• [x] skeleton-text
• [x] slide
• [x] slides
• [x] spinner
• [x] split-pane
• [x] tab-button
• [x] tab-bar
• [x] tab
• [x] tabs
• [x] tap-click
• [x] text
• [x] textarea
• [x] thumbnail
• [x] title
• [x] toast
• [x] toggle
• [x] toolbar
• [x] virtual-scroll

[adamdbradley]

Ok with a format like jsdocs?

/**
 * @prop --max-width: Max width of the alert
 * @prop --min-width: Min width of the alert
 */

[brandyscarney]

As part of this issue we are also resolving the following issues:

• setting --background overrides the background set by color #14853
• enhancement: stop overriding ion-color variables #14808

[hiepxanh]

please update for tab, it is very important

[ionitron-bot[bot]]

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