awtk/demos/assets/default/raw/styles/button.xml

<button>
  <style name="round" border_color="#a0a0a0"  text_color="black" round_radius="8">
    <normal     bg_color="#f0f0f0" />
    <pressed    bg_color="#c0c0c0" x_offset="1" y_offset="1"/>
    <over       bg_color="#e0e0e0" />
    <disable    bg_color="gray" text_color="#d0d0d0" />
  </style>
  
  <style name="icon" icon="earth" border_color="#a0a0a0"  text_color="black">
    <normal     bg_color="#f0f0f0" />
    <pressed    bg_color="#c0c0c0" x_offset="3" y_offset="3" />
    <over       bg_color="#e0e0e0" />
    <disable    bg_color="gray" text_color="#d0d0d0" />
  </style>
  <style name="red_btn" bg_image_draw_type="patch3_x" text_color="blue">
    <normal   bg_image="red_btn_n" />
    <pressed  bg_image="red_btn_p" x_offset="3" y_offset="3"/>
    <over     bg_image="red_btn_o" />
  </style>
  <style name="image" text_color="blue">
    <normal   icon="play_n" />
    <pressed  icon="play_p" x_offset="1" y_offset="1"/>
    <over     icon="play_o" />
  </style>
</button>