[wp-trac] [WordPress Trac] #38093: WP_Customize_Color_Control - there is no option for transparent color

[WordPress Trac]

#38093: WP_Customize_Color_Control - there is no option for transparent color
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 Reporter:  mukesh27     |       Owner:
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Customize    |     Version:  3.5
 Severity:  normal       |  Resolution:
 Keywords:  2nd-opinion  |     Focuses:  ui, javascript
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Changes (by celloexpressions):

 * keywords:   => 2nd-opinion
 * focuses:  javascript, administration, performance => ui, javascript
 * type:  feature request => enhancement
 * version:  4.6.1 => 3.5


Comment:

 This was discussed at some length when the color picker was introduced in
 #21206. I generally still agree with the reasoning there that allowing
 transparency generally results in a bad experience for end users. A
 transparent checkbox has been agreed as not a great solution in
 particular.

 RGBA might be an interesting option, and could be a parameter on the color
 control class so that it's only enabled when a particular feature calls
 for it. However, it introduces challenges for saving the associated
 setting and would require new sanitization functions, etc. A similar
 effect can be achieved by adding a color control followed by a generic
 control with `'type' => 'range'` and building the CSS back out of the two
 settings on the output side. I don't think core should add the complexity
 of rgba support to the core control, but does anyone else have opinions
 here?

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Ticket URL: <https://core.trac.wordpress.org/ticket/38093#comment:2>
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