diff --git a/src/lv_core/lv_style.c b/src/lv_core/lv_style.c
index d86f262ef..718fa6b37 100644
--- a/src/lv_core/lv_style.c
+++ b/src/lv_core/lv_style.c
@@ -90,11 +90,11 @@ void lv_style_init(void)
     lv_style_scr.body.shadow.color = LV_COLOR_GRAY;
     lv_style_scr.body.shadow.type  = LV_SHADOW_FULL;
     lv_style_scr.body.shadow.width = 0;
-    LV_FONT_DECLARE(lv_font_heb_16);
+
     lv_style_scr.text.opa          = LV_OPA_COVER;
     lv_style_scr.text.color        = lv_color_make(0x30, 0x30, 0x30);
     lv_style_scr.text.sel_color    = lv_color_make(0x55, 0x96, 0xd8);
-    lv_style_scr.text.font         = &lv_font_heb_16;//LV_FONT_DEFAULT;
+    lv_style_scr.text.font         = LV_FONT_DEFAULT;
     lv_style_scr.text.letter_space = 0;
     lv_style_scr.text.line_space   = 2;
 
diff --git a/src/lv_draw/lv_draw_arc.c b/src/lv_draw/lv_draw_arc.c
index ed4192dfe..e42a67dbf 100644
--- a/src/lv_draw/lv_draw_arc.c
+++ b/src/lv_draw/lv_draw_arc.c
@@ -215,79 +215,6 @@ void lv_draw_arc(lv_coord_t center_x, lv_coord_t center_y, uint16_t radius, cons
     }
 }
 
-static uint16_t fast_atan2(int x, int y)
-{
-    // Fast XY vector to integer degree algorithm - Jan 2011 www.RomanBlack.com
-    // Converts any XY values including 0 to a degree value that should be
-    // within +/- 1 degree of the accurate value without needing
-    // large slow trig functions like ArcTan() or ArcCos().
-    // NOTE! at least one of the X or Y values must be non-zero!
-    // This is the full version, for all 4 quadrants and will generate
-    // the angle in integer degrees from 0-360.
-    // Any values of X and Y are usable including negative values provided
-    // they are between -1456 and 1456 so the 16bit multiply does not overflow.
-
-    unsigned char negflag;
-    unsigned char tempdegree;
-    unsigned char comp;
-    unsigned int degree; /*this will hold the result*/
-    unsigned int ux;
-    unsigned int uy;
-
-    /*Save the sign flags then remove signs and get XY as unsigned ints*/
-    negflag = 0;
-    if(x < 0) {
-        negflag += 0x01; /*x flag bit*/
-        x = (0 - x);     /*is now +*/
-    }
-    ux = x; /*copy to unsigned var before multiply*/
-    if(y < 0) {
-        negflag += 0x02; /*y flag bit*/
-        y = (0 - y);     /*is now +*/
-    }
-    uy = y; /*copy to unsigned var before multiply*/
-
-    /*1. Calc the scaled "degrees"*/
-    if(ux > uy) {
-        degree = (uy * 45) / ux; /*degree result will be 0-45 range*/
-        negflag += 0x10;         /*octant flag bit*/
-    } else {
-        degree = (ux * 45) / uy; /*degree result will be 0-45 range*/
-    }
-
-    /*2. Compensate for the 4 degree error curve*/
-    comp       = 0;
-    tempdegree = degree;  /*use an unsigned char for speed!*/
-    if(tempdegree > 22) { /*if top half of range*/
-        if(tempdegree <= 44) comp++;
-        if(tempdegree <= 41) comp++;
-        if(tempdegree <= 37) comp++;
-        if(tempdegree <= 32) comp++; /*max is 4 degrees compensated*/
-    } else {                         /*else is lower half of range*/
-        if(tempdegree >= 2) comp++;
-        if(tempdegree >= 6) comp++;
-        if(tempdegree >= 10) comp++;
-        if(tempdegree >= 15) comp++; /*max is 4 degrees compensated*/
-    }
-    degree += comp; /*degree is now accurate to +/- 1 degree!*/
-
-    /*Invert degree if it was X>Y octant, makes 0-45 into 90-45*/
-      if(negflag & 0x10) degree = (90 - degree);
-
-    /*3. Degree is now 0-90 range for this quadrant,*/
-    /*need to invert it for whichever quadrant it was in*/
-    if(negflag & 0x02) {   /*if -Y*/
-        if(negflag & 0x01) /*if -Y -X*/
-            degree = (180 + degree);
-        else /*else is -Y +X*/
-            degree = (180 - degree);
-    } else {               /*else is +Y*/
-        if(negflag & 0x01) /*if +Y -X*/
-            degree = (360 - degree);
-    }
-    return degree;
-}
-
 /**********************
  *   STATIC FUNCTIONS
  **********************/
diff --git a/src/lv_font/lv_font_heb_16.c b/src/lv_font/lv_font_heb_16.c
index 5cff45178..b7723192e 100644
--- a/src/lv_font/lv_font_heb_16.c
+++ b/src/lv_font/lv_font_heb_16.c
@@ -1,4 +1,4 @@
-#include "lvgl/lvgl.h"
+#include "../../lvgl.h"
 
 /*******************************************************************************
  * Size: 16 px
diff --git a/src/lv_objx/lv_label.c b/src/lv_objx/lv_label.c
index bd99c10c8..9d7072006 100644
--- a/src/lv_objx/lv_label.c
+++ b/src/lv_objx/lv_label.c
@@ -731,7 +731,7 @@ uint16_t lv_label_get_letter_on(const lv_obj_t * label, lv_point_t * pos)
     if(bidi_txt[new_line_start] == '\0') txt_len--;
     lv_bidi_process_paragraph(txt + line_start, bidi_txt, txt_len, lv_obj_get_base_dir(label), NULL, 0);
 #else
-    bidi_txt = txt + line_start;
+    bidi_txt = (char*)txt + line_start;
 #endif
 
     /*Calculate the x coordinate*/