uniform float box_width;
uniform float box_height;
uniform float border_thickness;
uniform vec2 box_position;
uniform vec4 box_color;
uniform vec4 border_color;
precision mediump float;
/*{
    "CATEGORIES": [
        "Geometry"
    ],
    "CREDIT": "VIDVOX",
    "DESCRIPTION": "Draws a simple box with a border over a transparent background.",
    "INPUTS": [