[Snippets] Add new snippet

nvim/snippets/snippets/tex.json

@@ -231,6 +231,15 @@
 		],
 		"description": "Inserts a tcolorbox for general purposes. First bracket is title, second one is second title, third one colour"
 	},
+	"Simple-Tcolorbox": {
+		"prefix": "simple-tcb",
+		"body": [
+			"\\begin{simplebox}[]{${1|red,green,blue,cyan,magenta,yellow,black,gray,white,darkgray,lightgray,brown,lime,olive,orange,pink,purple,teal,violet|}}",
+			"\t$2",
+			"\\end{simplebox}"
+		],
+		"description": "Inserts a simple tcolorbox. No title, first argument the colour colour"
+	},
 	"Derivative": {
 		"prefix": "derivative",
 		"body": [