From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.devel Subject: Re: Emacs Survey: Toolbars Date: Fri, 25 Dec 2020 12:20:31 -0500 Message-ID: References: <87o8iv3ac3.fsf@gnus.org> <877dpjp30g.fsf@ucl.ac.uk> <87zh2fnmwq.fsf@gnus.org> <87o8ivumn5.fsf@telefonica.net> <87v9d3nkxk.fsf@gnus.org> <87a6u4imxq.fsf@logand.com> <87v9cq43ns.fsf@logand.com> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="23579"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: emacs-devel@gnu.org To: Tomas Hlavaty Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Fri Dec 25 18:21:46 2020 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ksqmg-00063e-8g for ged-emacs-devel@m.gmane-mx.org; Fri, 25 Dec 2020 18:21:46 +0100 Original-Received: from localhost ([::1]:38712 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ksqmf-00057K-As for ged-emacs-devel@m.gmane-mx.org; Fri, 25 Dec 2020 12:21:45 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45992) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ksqlZ-0004Y1-3u for emacs-devel@gnu.org; Fri, 25 Dec 2020 12:20:37 -0500 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:50054) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ksqlX-00037v-9y for emacs-devel@gnu.org; Fri, 25 Dec 2020 12:20:36 -0500 Original-Received: from pmg2.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 7839680853; Fri, 25 Dec 2020 12:20:34 -0500 (EST) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg2.iro.umontreal.ca (Proxmox) with ESMTP id 4F86080662; Fri, 25 Dec 2020 12:20:33 -0500 (EST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1608916833; bh=UWT0N9Md9fBNyo/GLg913NhO+/xDndM8Y53vTh4cDrM=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=LSRFfXLZlwt9mGxRn+N2PMMYGSIr/VqmNXxmYRtlhjlPahnDe++IKIyeeSht5wyoz 8iYS1h1VX8A17rifCCS2yk0Ywb2KREmVpoYdg0RY58UEey/yv6l2dQ2yfRGyQCNzLU LjrnYhBEkPl8pXfvu+XEj3onFi9sG9Fxrae6rFr3eZRfaeDmwV581Z6Va4Iw8FDS9U o5k8iW3VrzUWQdgkXCCZtuucPrk48GjKd6HISPBwCBrdiaAlUpZuZPaaFRgQJFnC+e WmUo+h4S4C3xo4kmETqZufnWCfX4v2qIm/cgvZHhNWfUNt5odlY02wypZuQ76kLiqn pYNmoYofdxsLQ== Original-Received: from alfajor (unknown [104.247.243.191]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id 1808D1203D8; Fri, 25 Dec 2020 12:20:33 -0500 (EST) In-Reply-To: <87v9cq43ns.fsf@logand.com> (Tomas Hlavaty's message of "Fri, 25 Dec 2020 10:48:39 +0100") Received-SPF: pass client-ip=132.204.25.50; envelope-from=monnier@iro.umontreal.ca; helo=mailscanner.iro.umontreal.ca X-Spam_score_int: -42 X-Spam_score: -4.3 X-Spam_bar: ---- X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:261756 Archived-At: > It is trivial for monochromatic documents. Actually, not even: if you've ever looked at the "negatives" used for analog black&white photos you'll surely understand that inverse-video doesn't work so well for images (mostly because it inverses lights and shadows, thus confusing the semantics). For a "pure" text or other such circumstances where the colors don't carry much meaning, it's not too hard to do something like "inverse video" with an acceptable result, but for photos or comparable kinds of images, I suspect that it's somewhere between very hard and impossible. Stefan