still there
外观有所改进，颜色还是不对

touch先不管了
必须用自己的程序测试环境
why???controls not show?

even led won't blink
还是无法显示控件，但是可以画图
seems driver is not called/defined properly

when drawing lines, the program always uses the global color variable
defined in blcd.c, which is not what the caller wanted ---because
desired color is stored in gui_context;
so what if i modify the driver and use this gui_context as source of
color data?
finally we got color which is still not normal

maybe demo ...
颜色反了：红-蓝

修改LCD_SWAP_RB没起色
之前背景是黑色，所以看不�
背景颜色怎么是蓝色的

还是再弄一下demo把他颜色跳过来就可以啦
最后弄touch——不用中断的话，touch很容易搞