Changing the tool changes the texture in the canvas

[thirdwheel]

Hi

I was having a go at the demo for this and noticed that if you change from crayon to marker after you draw, the texture of what you've drawn changes. Also, if you go to eraser, it erases the last mark you made.

[thirdwheel]

Same happens if you use the bucket tool, then change to crayon. Makes it look like you stayed within the lines when in fact you cheated.