I have to make a 'legend' for a grid that displays the rows in different colours based on the relation of the spending to the budget. Ideally I would like to show a small box the colour in question, with the explanation what it represents. I do not know how to make such a box in colour not how to specify colour on a textblock
<TextBlock VerticalAlignment="Center">Green = Below Budget</TextBlock>
<TextBlock VerticalAlignment="Center">Yellow = Below Budget in tol.</TextBlock>
<TextBlock VerticalAlignment="Center">Red = Over Budget </TextBlock>
<TextBlock VerticalAlignment="Center">Orange = Over Budget in Tol.</TextBlock>