add zen theme

lv_themes/lv_theme_zen.c

+/**
+ * @file lv_theme_zen.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_theme.h"
+
+
+#if USE_LV_THEME_ZEN
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+static lv_theme_t theme;
+static lv_style_t def;
+/*Static style definitions*/
+static lv_style_t sb;
+
+/*Saved input parameters*/
+static uint16_t _hue;
+static lv_font_t * _font;
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+static void basic_init(void)
+{
+    static lv_style_t bg;
+    static lv_style_t panel;
+
+    lv_style_copy(&def, &lv_style_pretty);  /*Initialize the default style*/
+    def.body.border.opa = LV_OPA_COVER;
+    def.text.font = _font;
+    def.text.color = LV_COLOR_HEX3(0x444);
+
+    lv_style_copy(&bg, &def);
+    bg.body.main_color = LV_COLOR_WHITE;
+    bg.body.grad_color = LV_COLOR_WHITE;
+    bg.body.radius = 0;
+    bg.body.border.width = 0;
+    bg.body.shadow.width = 0;
+
+    lv_style_copy(&panel, &bg);
+    panel.body.radius = LV_DPI / 10;
+    panel.body.border.width = 2;
+    panel.body.border.color = lv_color_hsv_to_rgb(_hue, 30, 90);
+    panel.body.border.opa = LV_OPA_COVER;
+    panel.body.shadow.width = 4;
+    panel.body.shadow.color = LV_COLOR_HEX3(0xddd);
+    panel.body.padding.hor = LV_DPI / 6;
+    panel.body.padding.ver = LV_DPI / 8;
+    panel.body.padding.inner = LV_DPI / 10;
+
+    theme.bg = &bg;
+    theme.panel = &panel;
+}
+
+static void cont_init(void)
+{
+#if USE_LV_CONT != 0
+
+
+    theme.cont = theme.panel;
+#endif
+}
+
+static void btn_init(void)
+{
+#if USE_LV_BTN != 0
+    static lv_style_t rel, pr, tgl_pr, ina;
+    lv_style_copy(&rel, &def);
+    rel.body.empty = 1;
+    rel.body.radius = LV_RADIUS_CIRCLE;
+    rel.body.border.width = 2;
+    rel.body.border.color = lv_color_hsv_to_rgb(_hue, 40, 90);
+    rel.body.border.opa = LV_OPA_COVER;
+    rel.body.shadow.width = 4;
+    rel.body.shadow.color = LV_COLOR_HEX3(0xddd);
+    rel.body.padding.hor = LV_DPI / 4;
+    rel.body.padding.ver = LV_DPI / 8;
+    rel.text.color = lv_color_hsv_to_rgb(_hue, 40, 90);
+
+    lv_style_copy(&pr, &rel);
+    pr.body.border.color = lv_color_hsv_to_rgb(_hue, 40, 60);
+    pr.text.color = lv_color_hsv_to_rgb(_hue, 40, 60);
+    pr.body.shadow.width = 0;
+
+    lv_style_copy(&tgl_pr, &pr);
+    tgl_pr.body.border.color = lv_color_hsv_to_rgb(_hue, 40, 50);
+    tgl_pr.text.color = lv_color_hsv_to_rgb(_hue, 40, 50);
+
+    lv_style_copy(&ina, &tgl_pr);
+    ina.body.border.color = LV_COLOR_HEX3(0xbbb);
+    ina.text.color = LV_COLOR_HEX3(0xbbb);
+
+    theme.btn.rel = &rel;
+    theme.btn.pr = ≺
+    theme.btn.tgl_rel = ≺
+    theme.btn.tgl_pr =  &tgl_pr;
+    theme.btn.ina =  &ina;
+#endif
+}
+
+
+static void label_init(void)
+{
+#if USE_LV_LABEL != 0
+    static lv_style_t prim, sec, hint;
+    lv_style_copy(&prim, &def);
+    lv_style_copy(&sec, &def);
+    lv_style_copy(&hint, &def);
+
+    prim.text.color = LV_COLOR_HEX3(0x555);
+    sec.text.color = lv_color_hsv_to_rgb(_hue, 50, 80);
+    hint.text.color = lv_color_hsv_to_rgb(_hue, 25, 85);
+
+    theme.label.prim = &prim;
+    theme.label.sec = &sec;
+    theme.label.hint = &hint;
+#endif
+}
+
+static void img_init(void)
+{
+#if USE_LV_IMG != 0
+    static lv_style_t img_light, img_dark;
+    lv_style_copy(&img_light, &def);
+    img_light.image.color = lv_color_hsv_to_rgb(_hue, 15, 85);
+    img_light.image.intense = LV_OPA_80;
+
+    lv_style_copy(&img_dark, &def);
+    img_light.image.color = lv_color_hsv_to_rgb(_hue, 85, 55);
+    img_light.image.intense = LV_OPA_80;
+
+    theme.img.light = &img_light;
+    theme.img.dark = &img_dark;
+#endif
+}
+
+static void line_init(void)
+{
+#if USE_LV_LINE != 0
+
+
+    theme.line.decor = &def;
+#endif
+}
+
+static void led_init(void)
+{
+#if USE_LV_LED != 0
+
+    static lv_style_t led;
+    lv_style_copy(&led, &lv_style_pretty_color);
+    led.body.shadow.width = LV_DPI / 10;
+    led.body.radius = LV_RADIUS_CIRCLE;
+    led.body.border.width= LV_DPI / 30;
+    led.body.border.opa = LV_OPA_30;
+    led.body.main_color = lv_color_hsv_to_rgb(_hue, 100, 100);
+    led.body.grad_color = lv_color_hsv_to_rgb(_hue, 100, 40);
+    led.body.border.color = lv_color_hsv_to_rgb(_hue, 60, 60);
+    led.body.shadow.color = lv_color_hsv_to_rgb(_hue, 100, 100);
+
+    theme.led = &led;
+#endif
+}
+
+static void bar_init(void)
+{
+#if USE_LV_BAR
+    static lv_style_t bg, indic;
+
+    lv_style_copy(&bg, &def);
+    bg.body.empty = 1;
+    bg.body.radius = LV_RADIUS_CIRCLE;
+    bg.body.border.width = 2;
+    bg.body.border.opa = LV_OPA_COVER;
+    bg.body.border.color = lv_color_hsv_to_rgb(_hue, 40, 90);
+
+    lv_style_copy(&indic, &def);
+    indic.body.radius = LV_RADIUS_CIRCLE;
+    indic.body.main_color = lv_color_hsv_to_rgb(_hue, 40, 90);
+    indic.body.grad_color = indic.body.main_color;
+    indic.body.border.width = 0;
+    indic.body.padding.hor = LV_DPI / 20;
+    indic.body.padding.ver = LV_DPI / 20;
+
+
+    theme.bar.bg = &bg;
+    theme.bar.indic = &indic;
+#endif
+}
+
+static void slider_init(void)
+{
+#if USE_LV_SLIDER != 0
+    static lv_style_t knob;
+
+    lv_style_copy(&knob, &def);
+    knob.body.main_color = theme.bar.indic->body.main_color;
+    knob.body.grad_color = knob.body.main_color;
+    knob.body.radius = LV_RADIUS_CIRCLE;
+    knob.body.border.width = 0;
+
+    theme.slider.bg = theme.bar.bg;
+    theme.slider.indic = theme.bar.indic;
+    theme.slider.knob = &knob;
+#endif
+}
+
+static void sw_init(void)
+{
+#if USE_LV_SW != 0
+    static lv_style_t indic;
+
+    lv_style_copy(&indic, theme.slider.indic);
+    indic.body.radius = LV_RADIUS_CIRCLE;
+    indic.body.main_color = lv_color_hsv_to_rgb(_hue, 15, 95);
+    indic.body.grad_color = indic.body.main_color;
+    indic.body.border.width = theme.slider.bg->body.border.width;
+    indic.body.border.color = theme.slider.bg->body.border.color;
+    indic.body.border.opa = theme.slider.bg->body.border.opa;
+    indic.body.padding.hor = 0;
+    indic.body.padding.ver = 0;
+
+
+
+    theme.sw.bg = theme.slider.bg;
+    theme.sw.indic = &indic;
+    theme.sw.knob_off = theme.slider.knob;
+    theme.sw.knob_on = theme.slider.knob;
+#endif
+}
+
+
+static void lmeter_init(void)
+{
+#if USE_LV_LMETER != 0
+    static lv_style_t lmeter;
+
+    lv_style_copy(&lmeter, &def);
+    lmeter.line.color = LV_COLOR_HEX3(0xddd);
+    lmeter.line.width = 3;
+    lmeter.body.main_color = lv_color_hsv_to_rgb(_hue, 80, 70);
+    lmeter.body.grad_color = lmeter.body.main_color;
+    lmeter.body.padding.hor = LV_DPI / 8;
+
+    theme.lmeter = &lmeter;
+#endif
+}
+
+static void gauge_init(void)
+{
+#if USE_LV_GAUGE != 0
+
+
+    theme.gauge = &def;
+#endif
+}
+
+static void chart_init(void)
+{
+#if USE_LV_CHART
+
+
+    theme.chart = theme.panel;
+#endif
+}
+
+static void cb_init(void)
+{
+#if USE_LV_CB != 0
+    static lv_style_t rel ,pr, tgl_rel, tgl_pr, ina;
+    lv_style_copy(&rel, &def);
+    rel.body.radius = LV_DPI / 20;
+    rel.body.shadow.width = 0;
+    rel.body.border.width = 3;
+    rel.body.border.opa = LV_OPA_COVER;
+    rel.body.border.color = lv_color_hsv_to_rgb(_hue, 35, 80);
+    rel.body.main_color = LV_COLOR_HEX3(0xfff);
+    rel.body.grad_color = rel.body.main_color;
+
+
+    lv_style_copy(&pr, &rel);
+    pr.body.border.color = lv_color_hsv_to_rgb(_hue, 35, 70);
+
+
+    lv_style_copy(&tgl_rel, &rel);
+    tgl_rel.body.border.color = lv_color_hsv_to_rgb(_hue, 45, 80);
+    tgl_rel.body.main_color = lv_color_hsv_to_rgb(_hue, 40, 90);
+    tgl_rel.body.grad_color = tgl_rel.body.main_color;
+
+    lv_style_copy(&tgl_pr, &rel);
+    tgl_pr.body.border.color = lv_color_hsv_to_rgb(_hue, 45, 70);
+    tgl_pr.body.main_color = lv_color_hsv_to_rgb(_hue, 40, 80);
+    tgl_pr.body.grad_color = tgl_pr.body.main_color;
+
+
+    lv_style_copy(&ina, &rel);
+    ina.body.border.color = LV_COLOR_HEX3(0xaaa);
+
+
+    theme.cb.bg = &lv_style_transp;
+    theme.cb.box.rel = &rel;
+    theme.cb.box.pr = ≺
+    theme.cb.box.tgl_rel = &tgl_rel;
+    theme.cb.box.tgl_pr = &tgl_pr;
+    theme.cb.box.ina = &ina;
+#endif
+}
+
+
+static void btnm_init(void)
+{
+#if USE_LV_BTNM
+    static lv_style_t bg, rel ,pr, tgl_rel, tgl_pr, ina;
+
+    lv_style_copy(&bg, &lv_style_transp);
+    bg.glass = 0;
+    bg.body.padding.hor = 0;
+    bg.body.padding.ver = 0;
+    bg.body.padding.inner = LV_DPI / 15;
+    bg.text.font = _font;
+
+    lv_style_copy(&rel, &def);
+    rel.body.empty = 1;
+    rel.body.border.width = 0;
+
+    lv_style_copy(&pr, &def);
+    pr.body.empty = 1;
+    pr.body.radius = LV_DPI / 1;
+    pr.body.border.width = 2;
+    pr.body.border.color = lv_color_hsv_to_rgb(_hue, 40, 60);
+    pr.body.border.opa = LV_OPA_COVER;
+    pr.text.color = lv_color_hsv_to_rgb(_hue, 40, 60);
+
+    lv_style_copy(&tgl_rel, &pr);
+    tgl_rel.body.empty = 0;
+    tgl_rel.body.main_color = lv_color_hsv_to_rgb(_hue, 15, 95);
+    tgl_rel.body.grad_color = tgl_rel.body.main_color;
+    tgl_rel.body.border.width = 0;
+    tgl_rel.text.color = lv_color_hsv_to_rgb(_hue, 60, 40);
+
+    lv_style_copy(&tgl_pr, &tgl_rel);
+    tgl_pr.body.main_color = lv_color_hsv_to_rgb(_hue, 30, 70);
+    tgl_pr.body.grad_color = tgl_pr.body.main_color;
+
+    lv_style_copy(&ina, &pr);
+    ina.body.main_color = LV_COLOR_HEX3(0x888);
+    ina.body.grad_color = tgl_pr.body.main_color;
+    ina.text.color = LV_COLOR_HEX3(0x888);;
+
+    theme.btnm.bg = &bg;
+    theme.btnm.btn.rel = &rel;
+    theme.btnm.btn.pr = ≺
+    theme.btnm.btn.tgl_rel = &tgl_rel;
+    theme.btnm.btn.tgl_pr = &tgl_pr;
+    theme.btnm.btn.ina = &ina;
+#endif
+}
+
+static void kb_init(void)
+{
+#if USE_LV_KB
+    static lv_style_t bg, rel ,pr, tgl_rel, tgl_pr, ina;
+    lv_style_copy(&bg, &def);
+     bg.body.main_color = LV_COLOR_HEX3(0x666);
+     bg.body.grad_color = bg.body.main_color;
+     bg.body.padding.hor = 0;
+     bg.body.padding.ver = 0;
+     bg.body.padding.inner = 0;
+     bg.body.radius = 0;
+     bg.body.border.width = 0;
+
+    lv_style_copy(&rel, &def);
+    rel.body.empty = 1;
+    rel.body.radius = 0;
+    rel.body.border.width = 1;
+    rel.body.border.color = LV_COLOR_HEX3(0x888);
+    rel.body.border.opa = LV_OPA_COVER;
+    rel.text.color = LV_COLOR_WHITE;
+
+    lv_style_copy(&pr, &def);
+    pr.body.main_color = LV_COLOR_HEX3(0xeee);
+    pr.body.grad_color = pr.body.main_color;
+    pr.body.border.color = LV_COLOR_HEX3(0x888);
+    pr.body.border.width = 1;
+    pr.body.border.opa = LV_OPA_COVER;
+    pr.body.radius = 0;
+    pr.text.color = LV_COLOR_HEX3(0x666);
+
+    lv_style_copy(&tgl_rel, &pr);
+    tgl_rel.body.main_color = LV_COLOR_HEX3(0x999);
+    tgl_rel.body.grad_color = tgl_rel.body.main_color;
+    tgl_rel.text.color = LV_COLOR_WHITE;
+
+
+    lv_style_copy(&tgl_pr, &pr);
+    tgl_pr.body.main_color = LV_COLOR_HEX3(0xbbb);
+    tgl_pr.body.grad_color = tgl_pr.body.main_color;
+    tgl_pr.text.color = LV_COLOR_HEX3(0xddd);
+
+    lv_style_copy(&ina, &pr);
+    ina.body.main_color = LV_COLOR_HEX3(0x777);
+    ina.body.grad_color = ina.body.main_color;
+    ina.text.color = LV_COLOR_HEX3(0xbbb);
+
+    theme.kb.bg = &bg;
+    theme.kb.btn.rel = &rel;
+    theme.kb.btn.pr = ≺
+    theme.kb.btn.tgl_rel = &tgl_rel;
+    theme.kb.btn.tgl_pr = &tgl_pr;
+    theme.kb.btn.ina = &ina;
+#endif
+
+}
+
+static void mbox_init(void)
+{
+#if USE_LV_MBOX
+    static lv_style_t bg, rel, pr;
+    lv_style_copy(&bg, theme.panel);
+    bg.body.main_color = lv_color_hsv_to_rgb(_hue, 10, 95);
+    bg.body.grad_color = bg.body.main_color;
+    bg.text.color = lv_color_hsv_to_rgb(_hue, 40, 25);
+
+    lv_style_copy(&rel, &def);
+    rel.body.main_color = lv_color_hsv_to_rgb(_hue, 25, 85);
+    rel.body.grad_color = rel.body.main_color;
+    rel.body.radius = LV_RADIUS_CIRCLE;
+    rel.body.border.width = 2;
+    rel.body.border.color = lv_color_hsv_to_rgb(_hue, 30, 70);
+    rel.body.padding.hor = LV_DPI / 4;
+    rel.body.padding.ver = LV_DPI / 8;
+    rel.text.color = bg.text.color;
+
+    lv_style_copy(&pr, &rel);
+    pr.body.border.color = lv_color_hsv_to_rgb(_hue, 30, 90);
+    pr.text.color = lv_color_hsv_to_rgb(_hue, 40, 40);
+    pr.body.main_color = lv_color_hsv_to_rgb(_hue, 20, 85);
+    pr.body.grad_color = pr.body.main_color;
+
+
+    theme.mbox.bg = &bg;
+    theme.mbox.btn.bg = &lv_style_transp;
+    theme.mbox.btn.rel = &rel;
+    theme.mbox.btn.pr = ≺
+#endif
+}
+
+static void page_init(void)
+{
+#if USE_LV_PAGE
+
+
+    theme.page.bg = theme.panel;
+    theme.page.scrl = &lv_style_transp;
+    theme.page.sb = &sb;
+#endif
+}
+
+static void ta_init(void)
+{
+#if USE_LV_TA
+    static lv_style_t oneline;
+    lv_style_copy(&oneline, theme.panel);
+    oneline.body.radius = LV_RADIUS_CIRCLE;
+    oneline.body.padding.ver = LV_DPI / 10;
+    oneline.body.shadow.width = 0;
+
+
+    theme.ta.area = theme.panel;
+    theme.ta.oneline = &oneline;
+    theme.ta.cursor = NULL;     /*Let library to calculate the cursor's style*/
+    theme.ta.sb = &def;
+#endif
+}
+
+static void list_init(void)
+{
+#if USE_LV_LIST != 0
+    static lv_style_t bg, rel, pr, tgl_rel, tgl_pr, ina;
+
+    lv_style_copy(&bg, theme.panel);
+    bg.body.padding.hor = 0;
+    bg.body.padding.ver = 0;
+
+    lv_style_copy(&rel, &def);
+    rel.body.empty = 1;
+    rel.body.border.width = 0;
+    rel.body.padding.hor = LV_DPI / 8;
+    rel.body.padding.ver = LV_DPI / 8;
+    rel.text.color = LV_COLOR_HEX3(0x666);
+
+    lv_style_copy(&pr, &rel);
+    pr.text.color = theme.btn.pr->text.color;
+
+    lv_style_copy(&tgl_rel, &rel);
+    tgl_rel.text.color = lv_color_hsv_to_rgb(_hue, 50, 90);
+
+    lv_style_copy(&tgl_pr, &rel);
+    tgl_pr.text.color = theme.btn.tgl_pr->text.color;
+
+    lv_style_copy(&ina, &rel);
+    ina.text.color = theme.btn.ina->text.color;
+
+    theme.list.sb = &sb;
+    theme.list.bg = &bg;
+    theme.list.scrl = &lv_style_transp_tight;
+    theme.list.btn.rel = &rel;
+    theme.list.btn.pr = ≺
+    theme.list.btn.tgl_rel = &tgl_rel;
+    theme.list.btn.tgl_pr = &tgl_pr;
+    theme.list.btn.ina = &ina;
+#endif
+}
+
+static void ddlist_init(void)
+{
+#if USE_LV_DDLIST != 0
+    static lv_style_t bg, sel;
+    lv_style_copy(&bg, theme.panel);
+    bg.text.line_space = LV_DPI / 8;
+    bg.body.padding.hor = LV_DPI / 6;
+    bg.body.padding.ver = LV_DPI / 8;
+    bg.text.color = LV_COLOR_HEX3(0x666);
+
+    lv_style_copy(&sel, &def);
+    sel.body.empty = 1;
+    sel.body.border.width = 0;
+    sel.text.color = lv_color_hsv_to_rgb(_hue, 50, 80);
+
+    theme.ddlist.bg = &bg;
+    theme.ddlist.sel = &sel;
+    theme.ddlist.sb = &def;
+#endif
+}
+
+static void roller_init(void)
+{
+#if USE_LV_ROLLER != 0
+    static lv_style_t bg, sel;
+    lv_style_copy(&bg, &def);
+    bg.body.border.width = 0;
+    bg.body.empty = 1;
+    bg.text.line_space = LV_DPI / 6;
+    bg.text.color = LV_COLOR_HEX3(0x999);
+
+    lv_style_copy(&sel, theme.panel);
+    sel.body.radius = LV_RADIUS_CIRCLE;
+    sel.body.empty = 1;
+
+    theme.roller.bg = &bg;
+    theme.roller.sel = &sel;
+#endif
+}
+
+static void tabview_init(void)
+{
+#if USE_LV_TABVIEW != 0
+    static lv_style_t btn_bg, indic, rel, pr, tgl_rel, tgl_pr;
+
+    lv_style_copy(&btn_bg, &def);
+    btn_bg.body.empty = 1;
+    btn_bg.body.border.width = 2;
+    btn_bg.body.border.part = LV_BORDER_BOTTOM;
+    btn_bg.body.border.color = lv_color_hsv_to_rgb(_hue, 10, 90);
+
+    lv_style_copy(&indic, &def);
+    indic.body.padding.inner = LV_DPI / 16;
+    indic.body.border.width = 0;
+    indic.body.radius = LV_RADIUS_CIRCLE;
+    indic.body.main_color = lv_color_hsv_to_rgb(_hue, 50, 80);
+    indic.body.grad_color = indic.body.main_color;
+
+    lv_style_copy(&rel, &def);
+    rel.body.empty = 1;
+    rel.body.border.width = 0;
+    rel.text.color = LV_COLOR_HEX3(0x999);
+
+
+    lv_style_copy(&pr, &rel);
+    pr.text.color = LV_COLOR_HEX3(0x777);
+
+    lv_style_copy(&tgl_rel, &rel);
+    tgl_rel.text.color = lv_color_hsv_to_rgb(_hue, 50, 80);
+
+    lv_style_copy(&tgl_pr, &rel);
+    tgl_pr.text.color = lv_color_hsv_to_rgb(_hue, 50, 70);
+
+    theme.tabview.bg = theme.bg;
+    theme.tabview.indic = &indic;
+    theme.tabview.btn.bg = &btn_bg;
+    theme.tabview.btn.rel = &rel;
+    theme.tabview.btn.pr = ≺
+    theme.tabview.btn.tgl_rel = &tgl_rel;
+    theme.tabview.btn.tgl_pr = &tgl_pr;
+#endif
+}
+
+
+static void win_init(void)
+{
+#if USE_LV_WIN != 0
+    static lv_style_t header, rel, pr;
+
+    lv_style_copy(&header, &def);
+    header.body.empty = 1;
+    header.body.border.width = 2;
+    header.body.border.part = LV_BORDER_BOTTOM;
+    header.body.border.color = lv_color_hsv_to_rgb(_hue, 10, 90);
+    header.text.color = LV_COLOR_HEX3(0x666);
+
+    lv_style_copy(&rel, &def);
+    rel.body.empty = 1;
+    rel.body.border.width = 0;
+    rel.text.color =  LV_COLOR_HEX3(0x666);
+
+    lv_style_copy(&pr, &rel);
+    pr.text.color = LV_COLOR_HEX3(0x333);
+
+    theme.win.bg = theme.panel;
+    theme.win.sb = &sb;
+    theme.win.header = &header;
+    theme.win.content.bg = &lv_style_transp;
+    theme.win.content.scrl = &lv_style_transp;
+    theme.win.btn.rel = &rel;
+    theme.win.btn.pr = ≺
+#endif
+}
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+
+
+/**
+ * Initialize the zen theme
+ * @param hue [0..360] hue value from HSV color space to define the theme's base color
+ * @param font pointer to a font (NULL to use the default)
+ * @return pointer to the initialized theme
+ */
+lv_theme_t * lv_theme_zen_init(uint16_t hue, lv_font_t *font)
+{
+    if(font == NULL) font = LV_FONT_DEFAULT;
+
+    _hue = hue;
+    _font = font;
+
+    /*For backward compatibility initialize all theme elements with a default style */
+    uint16_t i;
+    lv_style_t **style_p = (lv_style_t**) &theme;
+    for(i = 0; i < sizeof(lv_theme_t) / sizeof(lv_style_t*); i++) {
+        *style_p = &def;
+        style_p++;
+    }
+
+    basic_init();
+    cont_init();
+    btn_init();
+    label_init();
+    img_init();
+    line_init();
+    led_init();
+    bar_init();
+    slider_init();
+    sw_init();
+    lmeter_init();
+    gauge_init();
+    chart_init();
+    cb_init();
+    btnm_init();
+    kb_init();
+    mbox_init();
+    page_init();
+    ta_init();
+    list_init();
+    ddlist_init();
+    roller_init();
+    tabview_init();
+    win_init();
+
+    return &theme;
+}
+
+/**
+ * Get a pointer to the theme
+ * @return pointer to the theme
+ */
+lv_theme_t * lv_theme_get_zen(void)
+{
+    return &theme;
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/
+
+#endif
+

lv_themes/lv_theme_zen.h

+/**
+ * @file lv_theme_zen.h
+ *
+ */
+
+#ifndef LV_THEME_ZEN_H
+#define LV_THEME_ZEN_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "../../lv_conf.h"
+
+#if USE_LV_THEME_ZEN
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ * GLOBAL PROTOTYPES
+ **********************/
+
+/**
+ * Initialize the zen theme
+ * @param hue [0..360] hue value from HSV color space to define the theme's base color
+ * @param font pointer to a font (NULL to use the default)
+ * @return pointer to the initialized theme
+ */
+lv_theme_t * lv_theme_zen_init(uint16_t hue, lv_font_t *font);
+
+/**
+ * Get a pointer to the theme
+ * @return pointer to the theme
+ */
+lv_theme_t * lv_theme_get_zen(void);
+
+/**********************
+ *      MACROS
+ **********************/
+
+#endif
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /*LV_THEME_ZEN_H*/