matlab

close, clear, clc

figure, hold on, axis square off
vertices = 8.*rand(7,2);
vertices(1,:) = [0 0];
verticies(2,1)=0;
verticies(end, 2) = 0;
drawButton = uicontrol;
set(drawButton, 'String', 'New shape', 'Position', [400, 350, 100, 40], 'FontName', 'Ariel', 'fontsize', 10)
redMinus = uicontrol;
set(redMinus, 'String', 'Red -', 'Position', [50, 40, 50, 40])
redPlus = uicontrol;
set(redPlus, 'String', 'Red +', 'Position', [100, 40, 50, 40])
greenMinus = uicontrol;
set(greenMinus, 'String', 'Green -', 'Position', [225, 40, 50, 40])
greenPlus = uicontrol;
set(greenPlus, 'String', 'Green +', 'Position', [275, 40, 50, 40])
blueMinus = uicontrol;
set(blueMinus, 'String', 'Blue -', 'Position', [400, 40, 50, 40])
bluePlus = uicontrol;
set(bluePlus, 'String', 'Blue +', 'Position', [450, 40, 50, 40])

colour = rand(3);

fill(vertices(:,1), vertices(:,2), colour);
fill(-vertices(:,1), vertices(:,2), [1 1 1]);
fill(vertices(:,1), -vertices(:,2), -colour);
fill(-vertices(:,1), -vertices(:,2), [0 0 0]);

xlim([-10 10])
ylim([-10 10])