Add a demo of alerts and tweak styles

core/ui/AlertTemplate.tid

@@ -1,4 +1,8 @@
 title: $:/core/ui/AlertTemplate
 
-<div class="tw-alert"><div class="tw-alert-toolbar"><$button message="tw-delete-tiddler" class="btn-invisible">{{$:/core/images/delete-button}}</$button></div><div class="tw-alert-subtitle"><$view field="component"/> - <$view field="modified" format="date" template="0hh:0mm:0ss DD MM YYYY"/> <$reveal type="nomatch" state="!!count" text=""><span class="tw-alert-highlight">(count: <$view field="count"/>)</span></$reveal></div><div class="tw-alert-body"><$view field="text"/></div></div>
+<div class="tw-alert"><div class="tw-alert-toolbar"><$button message="tw-delete-tiddler" class="btn-invisible">{{$:/core/images/delete-button}}</$button></div><div class="tw-alert-subtitle"><$view field="component"/> - <$view field="modified" format="date" template="0hh:0mm:0ss DD MM YYYY"/> <$reveal type="nomatch" state="!!count" text=""><span class="tw-alert-highlight">(count: <$view field="count"/>)</span></$reveal></div>
 
+<div class="tw-alert-body">
+<$transclude/>
+</div>
+</div>

editions/tw5.com/tiddlers/Features.tid

@@ -4,12 +4,15 @@ tags: introduction
 title: Features
 type: text/vnd.tiddlywiki
 
+\define alert-demo()
+<$fieldmangler tiddler="SampleAlert"><$set name="currentTiddler" value="SampleAlert"><$button message="tw-add-tag" param="$:/tags/Alert" class="btn btn-inverse">alerts</$button></$set></$fieldmangler>
+\end
 * The ability to save changes on almost any desktop HTML5 compatible-browser, with custom apps to enable [[Saving on iPad/iPhone]] and [[Android|Saving on Android]], and a cross-platform [[Firefox extension|Saving with TiddlyFox]] that even runs on Android
 * [[Bitmap images|Motovun Jack.jpg]] and [[SVG images|UsingSVG]] are first-class citizens alongside text
 * Concise and expressive WikiText that generates semantic HTML
 * Integrated [[AES encryption|Saving with Encryption]]
 * TiddlyWiki isn't just a wiki - you can build custom applications with it like this TaskManagementExample
-* Familiar user interface elements like <$button message="tw-modal" param="SampleWizard" class="btn btn-inverse">wizards</$button> and <$button message="tw-notify" param="SampleNotification" class="btn btn-inverse">notifications</$button>
+* Familiar user interface elements like <<alert-demo>>, <$button message="tw-modal" param="SampleWizard" class="btn btn-inverse">wizards</$button> and <$button message="tw-notify" param="SampleNotification" class="btn btn-inverse">notifications</$button>
 * Easily [[import|ImportTiddlers]] content via drag and drop, copy and paste, or browsing for local files
 * Clone existing tiddlers (for example, <$button message="tw-new-tiddler" param=<<currentTiddler>>>clone this tiddler</$button>)
 * TiddlyWiki is [[surprisingly scalable|Scalability]] to many thousands of tiddlers and megabytes of content

editions/tw5.com/tiddlers/mechanisms/AlertMechanism.tid

@@ -6,6 +6,8 @@ type: text/vnd.tiddlywiki
 
 Alerts are displayed as yellow boxes overlaying the main TiddlyWiki window. Each one corresponds to a tiddler with the tag [[$:/tags/Alert]]. Clicking the delete icon on an alert deletes the corresponding tiddler.
 
+Here's a demo <$fieldmangler tiddler="SampleAlert"><$set name="currentTiddler" value="SampleAlert"><$button message="tw-add-tag" param="$:/tags/Alert" class="btn btn-inverse">alert</$button></$set></$fieldmangler>.
+
 Alert tiddlers should have the following fields:
 
 |!Field |!Description |
@@ -14,4 +16,3 @@ Alert tiddlers should have the following fields:
 |modified |Date of the alert (used for ordering the alerts on screen) |
 |component |Component name associated with the alert |
 |tags |Must include [[$:/tags/Alert]] |
-

editions/tw5.com/tiddlers/samples/SampleAlert.tid

@@ -0,0 +1,6 @@
+title: SampleAlert
+component: demo
+
+This is a demonstration alert.
+
+Note that the trashcan icon deletes the tiddler containing this alert. You can also remove it by opening the tiddler SampleAlert and editing it to remove the tag [[$:/tags/Alert]].

themes/tiddlywiki/snowwhite/base.tid

@@ -121,6 +121,12 @@ canvas.tw-edit-bitmapeditor  {
 	<<box-shadow "inset 0 1px 0 #fff">>;
 }
 
+
+.tw-alert {
+	<<border-radius 6px>>
+	<<box-shadow "0 3px 7px rgba(0,0,0,0.6)">>
+}
+
 .tw-notification {
 	<<border-radius 6px>>
 	<<box-shadow "0 3px 7px rgba(0,0,0,0.3)">>

themes/tiddlywiki/vanilla/base.tid

@@ -926,17 +926,16 @@ canvas.tw-edit-bitmapeditor  {
 	position: fixed;
 	top: 0;
 	left: 0;
-	right: 0;
+	max-width: 500px;
 	z-index: 20000;
 }
 
 .tw-alert {
 	position: relative;
-	<<border-radius 6px>>
 	margin: 28px;
 	padding: 14px 14px 14px 14px;
-	border: 3px solid #DBB727;
-	background-color: rgb(250, 210, 50);
+	border: 2px solid #B99E2F;
+	background-color: rgb(255, 228, 118);
 }
 
 .tw-alert-toolbar {
@@ -945,8 +944,12 @@ canvas.tw-edit-bitmapeditor  {
 	right: 14px;
 }
 
+.tw-alert-toolbar svg {
+	fill: #B99E2F;
+}
+
 .tw-alert-subtitle {
-	color: #DBB727;
+	color: #B99E2F;
 	font-weight: bold;
 }