Now we have some space inside for other buttons. Though we'll need to special-case landscape vs portrait.
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button(ui_state, 'right', {x=left+lw*side, y=top, w=Safe_width-left-lw*side, h=lh*side,
bg={r=0.4,g=0.2,b=0.4},
onpress1=move_right,
})
button(ui_state, 'up', {x=left, y=0, w=lw*side, h=top,
button(ui_state, 'right', {x=Safe_width-bside, y=bside, w=bside, h=Safe_height-bside*2,
bg=bg, onpress1=move_right})
button(ui_state, 'up', {x=bside, y=0, w=Safe_width-bside*2, h=bside,