- From: Tab Atkins Jr. <jackalmage@gmail.com>
- Date: Wed, 26 Aug 2009 08:15:34 -0500
On Wed, Aug 26, 2009 at 2:35 AM, Max Romantschuk<max at romantschuk.fi> wrote: > Victor Vasiliev wrote: >> >> I suggest to add a boolean attribute "alpha" to <input type=color> >> (disabled by default). If this attribute is present, the color well >> allows to set opacity value, and instead of sRGB, sends RGBA. >> >> Another question is which format should be used to submit RGBA color. We >> have rgba(number, number, number, float) used in canvas, but I feel like >> it's not the best format to be used in submited data. Maybe #rrggbbaa or >> #aarrggbb? > > input type=color is specified to define a simple color: > http://dev.w3.org/html5/spec/Overview.html#simple-color > > While alpha information is useful, it's not really a color attribute is it? > Using type=color paired with type=range for alpha would serve fairly well in > most cases, I believe. > > How do the people more into design feel about this? I'm mainly a coder > myself. Many, though certainly not all, applications that allow color-choosing make alpha a part of the color-chooser dialog. (Some, like GIMP, offer it as a separate choice, similar to your <input type=slider> suggestion.) CSS has also trained many of us authors that alpha is a component of colors with its rgba() syntax. ~TJ
Received on Wednesday, 26 August 2009 06:15:34 UTC