#188 Selecting text in Dark Mode doesn't change background color

[Burkhard Schmidt]

When in Dark Mode, selecting text replaces the foreground color with the background color. However the background color remains unchanged, so with the default settings, I get white text on white background. The background color is actually changed to dark gray when the active editing window loses focus.

[Burkhard Schmidt]

Forgot to include version info:

Alpha 9.0.1d5 (unix, Darwin)
AlphaTcl 9.0.1d5
System: Mac OS X 10.14
Architecture: i386
Kernel: Darwin 18.0.0

Tcl-version 8.6.6
system encoding utf-8
AlphaTcl encoding utf-8

cmdline 1.5
msgcat 1.6.0
resource 1.3
struct::list 1.8.3
Tcl 8.6.6
tcl::tommath 8.6.6
tclAE 3.0.0
TclOO 1.0.5
vfs 1.4.1
vfslib 1.4
zlib 2.0.1

Binary extensions loaded: Vfs, Tclae, Resource

[Bernard Desgraupes]

Hmm, unless I misunderstand the report, this is not what I observe. I do get the hiliting color when I select a piece of text. See the attachment.

[Burkhard Schmidt]

Dear Bernard,

thank you for your quick reply. I had a closer look on this and have made two more observations:

1. The behavior I describe happens only when (a) Appearance is set to Dark and (b) Highlight Color is set to Graphite in the General control panel of System Preferences. I hope you can confirm this.

2. The behavior is not exclusive to Alpha (I didn’t check this prior to filing a ticket): TeXShop shows the same when using its LiteTheme and general preferences settings as described in 1.

This might point to a bug in macOS 10.14, not in Alpha.

Best regards,
Burkhard.

Am 26.10.2018 um 06:51 schrieb Bernard Desgraupes bdesgraupes@users.sourceforge.net:

Hmm, unless I misunderstand the report, this is not what I observe. I do get the hiliting color when I select a piece of text. See the attachment.

Attachments:

• selection_in_dark_mode.png (463.8 kB; image/png)
[tickets:#188] Selecting text in Dark Mode doesn't change background color

Status: open
Created: Thu Oct 25, 2018 07:58 AM UTC by Burkhard Schmidt
Last Updated: Thu Oct 25, 2018 07:59 AM UTC
Owner: nobody

When in Dark Mode, selecting text replaces the foreground color with the background color. However the background color remains unchanged, so with the default settings, I get white text on white background. The background color is actually changed to dark gray when the active editing window loses focus.

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[Bernard Desgraupes]

Dear Burkhard,
sorry I have missed your previous comment. I've seen it just now. I confirm the issue in the setting you mention. I also notice that if you select some text in a window, then switch to another one the white-on-white selection becomes visible (in the window in the background).
This is probably a Mojave bug but TextEdit (which also uses the Cocoa text engine) does not exhibit the problem. I'll investigate.

[Bernard Desgraupes]

Since indeed any System Background Color other than Graphite works correctly, let us consider that this is a macOS bug and close this ticket.