Everything is controlled by the mouse (touching and dragging on mobile) Click/tap on colors to set them as the color and drag the size slider to change the size of the brush.
The interface was made by Microsoft but reorganized by me. Also the erase all text is from the scratch costume editor. version 1.0.2 1.0.2 - mouse pointer dot changed to pen 1.0.1 - lag fixes (It's called MH Paint because it's like ms paint but Mr_Hayden and the m and the h begin the words and are uppercase and yeah its funny)