feat: add background, color, and class options

Following:

atom-community/tool-bar#278

and:

atom-community/tool-bar#285

Released with v1.2.1 and v1.2.2 of tool-bar respectively

Author: ericcornelissen

lib/types/button.js

@@ -8,6 +8,9 @@ export default function (toolBar, button) {
 		html: button.html,
 		tooltip: button.tooltip,
 		priority: button.priority || 45,
+		background: button.background,
+		color: button.color,
+		class: button.class,
 		callback: button.callback,
 	};
 

lib/types/file.js

@@ -9,6 +9,9 @@ export default function (toolBar, button) {
 		tooltip: button.tooltip,
 		priority: button.priority || 45,
 		data: button.file,
+		background: button.background,
+		color: button.color,
+		class: button.class,
 		callback: (file) => {
 			atom.workspace.open(file);
 		}

lib/types/function.js

@@ -9,6 +9,9 @@ export default function (toolBar, button, getActiveItem) {
 		tooltip: button.tooltip,
 		priority: button.priority || 45,
 		data: button.callback,
+		background: button.background,
+		color: button.color,
+		class: button.class,
 		callback(data) {
 			return data.call(this, getActiveItem().item);
 		},

lib/types/url.js

@@ -12,6 +12,9 @@ export default function (toolBar, button) {
 		tooltip: button.tooltip,
 		priority: button.priority || 45,
 		data: button.url,
+		background: button.background,
+		color: button.color,
+		class: button.class,
 		callback(url) {
 			const urlReplace = new UrlReplace();
 			// eslint-disable-next-line no-param-reassign