vector expandingbox_resize_centered_box_offset(float sz, vector boxsize, float boxxsizefactor);
+float blink(float base, float range, float freq);
+
void drawborderlines(float thickness, vector pos, vector dim, vector color, float theAlpha, float drawflag);
void drawpic_tiled(vector pos, string pic, vector sz, vector area, vector color, float theAlpha, float drawflag);