feat(theme_mono): Pass small/large fonts to theme init

In order to allow setting the small/large fonts, pass them to the mono
theme initialization function.

Signed-off-by: Peter Johanson <peter@peterjohanson.com>

Author: petejohanson

src/display/lv_display.c

@@ -144,7 +144,7 @@ lv_display_t * lv_display_create(int32_t hor_res, int32_t ver_res)
     }
 #elif LV_USE_THEME_MONO
     if(lv_theme_mono_is_inited() == false) {
-        disp->theme = lv_theme_mono_init(disp, false, LV_FONT_DEFAULT);
+        disp->theme = lv_theme_mono_init(disp, false, LV_FONT_DEFAULT, LV_FONT_DEFAULT, LV_FONT_DEFAULT);
     }
     else {
         disp->theme = lv_theme_mono_get();

src/themes/mono/lv_theme_mono.c

@@ -181,7 +181,7 @@ static void style_init(my_theme_t * theme, bool dark_bg, const lv_font_t * font)
  *   GLOBAL FUNCTIONS
  **********************/
 
-lv_theme_t * lv_theme_mono_init(lv_display_t * disp, bool dark_bg, const lv_font_t * font)
+lv_theme_t * lv_theme_mono_init(lv_display_t * disp, bool dark_bg, const lv_font_t * font, const lv_font_t * small_font, const lv_font_t * large_font)
 {
     /*This trick is required only to avoid the garbage collection of
      *styles' data if LVGL is used in a binding (e.g. MicroPython)
@@ -194,9 +194,9 @@ lv_theme_t * lv_theme_mono_init(lv_display_t * disp, bool dark_bg, const lv_font
     my_theme_t * theme = theme_def;
 
     theme->base.disp = disp;
-    theme->base.font_small = LV_FONT_DEFAULT;
-    theme->base.font_normal = LV_FONT_DEFAULT;
-    theme->base.font_large = LV_FONT_DEFAULT;
+    theme->base.font_small = small_font;
+    theme->base.font_normal = font;
+    theme->base.font_large = large_font;
     theme->base.apply_cb = theme_apply;
 #if LV_USE_EXT_DATA
     theme->base.ext_data.free_cb = NULL;

src/themes/mono/lv_theme_mono.h

@@ -36,7 +36,7 @@ extern "C" {
  * @param font pointer to a font to use.
  * @return a pointer to reference this theme later
  */
-lv_theme_t * lv_theme_mono_init(lv_display_t * disp, bool dark_bg, const lv_font_t * font);
+lv_theme_t * lv_theme_mono_init(lv_display_t * disp, bool dark_bg, const lv_font_t * font, const lv_font_t * small_font, const lv_font_t * large_font);
 
 /**
 * Check if the theme is initialized