1. Added framework for interface with robot via bluetooth
2. Addressed numbers 1,3,5,6,8 from the following list
1) When the app opens, the yellow color is the default color. It is hard to see. Please make the black color as default. You can switch yellow and black colors, if you want so the black color is default or you may change the default setting.
2) I selected 'background' first and then selected the red color but nothing happened. This is because the 'pencil' was not selected. Anytime a person selects a color, the pencil should be selected as default so a person can quickly start drawing.
3) The 'background' button needs to be changed to the attached drawing called 'background button'
4) Can we add an eraser of different width?
5) The default pencil point is too thin. Please note that the background sketches use a thicker line. Can we use the same thicker line for the pencil default?
6) When I use the sketch feature and take a picture, it comes out too dark. I know you have the setting to make it lighter. But can we use a lighter version as default (you get the lighter version by using the slider. so the default would be the slider setting to the right to make it less darker)?  Also, first few pictures, I could not see the slider because it was too small and in blue. Can the slider be made bigger and in red?
7) When I select 'shapes' (let's say I selected a pentagon), and then I go to color and I want to change the color of the pentagon to blue, right now nothing seems to happen until I touch the pentagon and then it changes to blue (two step procedure). Can we change it one step procedure so when I have a pentagon and I change the blue color, the pentagon would change to blue?
8) After I select the 'text' button and start typing, it uses the yellow default color and since yellow is hard to see, it seems that nothing is getting typed in the text box. Since you will be changing the default to black anyway, but while you are typing the text and you want to change the color of the text, it does not change to the selected color and stays in the default color.
9) When we draw something, the UNDO left button should get highlighted, so we know we can use the button to undo things. Right now the UNDO button does not get highlighted.
10) After I get a sketch on the screen (by using the camera or an existing drawing) and then I select the 'background button', nothing happens. I think it should ask, 'Delete sketch and load a new background' or simply say 'erase sketch? yes, no' and if the answer is yes, then erase the sketch and load the background.
Automatically switch to pencil mode upon color selection if not in text or shape mode.