firmware: Add background image

firmware/main/CMakeLists.txt

@@ -1,3 +1,3 @@
 idf_component_register(
-  SRCS "valconomy.c" "ui.c" "lcd.c" "usb.c" "font/tungsten_120.c"
+  SRCS "valconomy.c" "ui.c" "lcd.c" "usb.c" "font/tungsten_120.c" "img/bg.c"
   INCLUDE_DIRS ".")

firmware/main/ui.c

@@ -2,7 +2,12 @@
 
 #include "ui.h"
 
-static const lv_font_t *font_normal = &lv_font_montserrat_14;
+static const lv_font_t *font_normal = &lv_font_montserrat_24;
+
+static lv_color_t color_primary, color_secondary;
+static lv_color_t color_text_hero;
+
+static lv_style_t s_hero;
 
 static void b_cfg_cb(lv_event_t *e) {
   lv_obj_t *box = lv_msgbox_create(NULL);
@@ -12,8 +17,11 @@ static void b_cfg_cb(lv_event_t *e) {
 }
 
 static void ui_home() {
+  lv_obj_t *i_bg = lv_image_create(lv_screen_active());
+  lv_image_set_src(i_bg, &ui_img_bg);
+
   lv_obj_t *l_test = lv_label_create(lv_screen_active());
-  lv_obj_set_style_text_font(l_test, &lv_font_tungsten_120, 0);
+  lv_obj_add_style(l_test, &s_hero, 0);
   lv_label_set_text(l_test, "VAL TIME");
 
   lv_obj_t *b_cfg = lv_button_create(lv_screen_active());
@@ -26,12 +34,21 @@ static void ui_home() {
 }
 
 void val_lvgl_ui(lv_display_t *disp) {
+  color_primary = lv_color_hex(0xff4655);
+  color_secondary = lv_color_hex(0xf7518f);
+
+  color_text_hero = lv_palette_lighten(LV_PALETTE_GREY, 2);
+
   // init default theme
   lv_theme_default_init(
-    disp, lv_palette_main(LV_PALETTE_BLUE), lv_palette_main(LV_PALETTE_RED),
+    disp, color_primary, color_secondary,
     true, // dark theme
     font_normal);
   // lv_sysmon_hide_performance(disp);
 
+  lv_style_init(&s_hero);
+  lv_style_set_text_font(&s_hero, &lv_font_tungsten_120);
+  lv_style_set_text_color(&s_hero, color_text_hero);
+
   ui_home();
 }

firmware/main/ui.h

@@ -4,4 +4,6 @@
 
 LV_FONT_DECLARE(lv_font_tungsten_120)
 
+LV_IMAGE_DECLARE(ui_img_bg);
+
 void val_lvgl_ui(lv_display_t *disp);