Color handling handed off to rcairo

samples/basic.rb

@@ -3,18 +3,16 @@ require 'squib'
 
 data = {'name' => ['Thief', 'Grifter', 'Mastermind'], 
         'level' => [1,2,3]}
-longtext = "Hello, World! What do you know about tweetle beetles? well... \nWhen tweetle beetles fight, it's called a tweetle beetle battle. And when they battle in a puddle, it's a tweetle beetle puddle battle. AND when tweetle beetles battle with paddles in a puddle, they call it a tweetle beetle puddle paddle battle. AND... When beetles battle beetles in a puddle paddle battle and the beetle battle puddle is a puddle in a bottle... ..they call this a tweetle beetle bottle puddle paddle battle muddle. AND... When beetles fight these battles in a bottle with their paddles and the bottle's on a poodle and the poodle's eating noodles... ...they call this a muddle puddle tweetle poodle beetle noodle bottle paddle battle."
 
 Squib::Deck.new(width: 825, height: 1125, cards: 3) do
-  background color: [1.0,1.0,1.0]
+  background color: :white
   rect x: 15, y: 15, width: 795, height: 1095, x_radius: 50, y_radius: 50
   rect x: 30, y: 30, width: 128, height: 128, x_radius: 25, y_radius: 25
 
   text str: data['name'], x: 250, y: 55, font: 'Arial 54'
   text str: data['level'], x: 65, y: 40, font: 'Arial 72'
-  text str: longtext, x: 100, y: 600, font: 'Arial 16'
 
-  png file: 'shiny-purse.png', x: 665, y: 30
+  png range: [0,2], file: 'shiny-purse.png', x: 665, y: 30
   svg range: 1..2, file: 'spanner.svg', x: 665, y: 165
 
   save format: :png

samples/excel.rb

@@ -2,7 +2,7 @@
 require 'squib'
 
 Squib::Deck.new(width: 825, height: 1125, cards: 3) do
-  background color: [1.0,1.0,1.0]
+  background color: :white
 
   data = xlsx file: 'sample.xlsx', sheet: 0