Bug 47429 – textarea coloration differs between readonly="true" and disabled="disabled"

• Component: CSS
• Status: RESOLVED CONFIGURATION CHANGED

Created attachment 70280 [details]
Sample Code showing problem

I have some test code which shows a textarea set to readonly="readonly", a textarea set to disabled="disabled", and a p containing the same font-family, color, and background.
The textarea with disabled="disabled" is noticeably different from the main color.  It is lighter.  This seems to happen for colors in the blue spectrum, but not red.  I've been using #5692CD to test with.

Attached is the sample file I used to reproduce this.
I would have expected these colors to appear the same; if not, I would expect there to be a way to achieve the same coloration and also retain the functionality of a disabled textarea.

Tested with the following settings
Google Chrome	6.0.472.63 (Official Build 59945)
WebKit	534.3
V8	2.2.24.24
User Agent	Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3

Created attachment 70281 [details]
screenshot showing how I see it

[Alexey Proskuryakov]

I can reproduce the results, but I'm not sure why this is a bug. Readonly and disabled are different in behavior, so why shouldn't they be different in appearance?

(In reply to comment #2)
> I can reproduce the results, but I'm not sure why this is a bug. Readonly and disabled are different in behavior, so why shouldn't they be different in appearance?

I think the idea would be that I could choose to make it appear how I want while still retaining the behavior.  I would argue that it is misleading if I choose a color and the actual output color is not the same.  I understand the purpose of changing the color to denote a difference in behavior, I just want the ability to configure that changing of color off.  I can change other attributes such as the background color to change the appearance of a disabled textarea, why should I not be able to control the color of the text?

[Ahmad Saleem]

Created attachment 460816 [details]
Safari 15.5 differs from other browsers

I am able to reproduce this bug in Safari 15.5 on macOS 12.4 and as can be seen in the attached screenshot (similar to original), the disabled <textarea> has different color compared to other browsers. It is just visual thing but can we align our behavior with other browsers (Chrome Canary 105 and Firefox Nightly 104 - as seen in the screenshot)? Thanks!

[Radar WebKit Bug Importer]

<rdar://problem/96907998>

[Ahmad Saleem]

It seems to be fixed now by Karl (if I am not mistaken) as confirmed in STP171.

@Karl - I think it is similar to 'disabled' textarea not being visible in certain conditions bug, you fixed.

[Karl Dubost]

At least we can close this bug as there is indeed no differences and that was the purpose of this bug in the first place. 

Thanks Ahmad.