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Fix large blacklevel step. Lower 25% of shades are now accessible.

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There is a large step in brightness from level zero to level one.
After experimenting with various ST7789 options, I found that
decreasing VDV to 0x10 (-0.4V) fixes this issue.

The gamma change reduced the average error in brightness, but with the
underlying issue fixed, the gamma change has been reverted.
This commit is contained in:
Riku Isokoski
2022-04-26 13:09:30 +03:00
parent b31fbb4adb
commit 8061822f0c
9 changed files with 16 additions and 14 deletions
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2
src/displayapp/screens/StopWatch.cpp
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@@ -65,7 +65,7 @@ StopWatch::StopWatch(DisplayApp* app, System::SystemTask& systemTask)
lv_obj_set_event_cb(btnStopLap, stop_lap_event_handler);
lv_obj_set_size(btnStopLap, 115, 50);
lv_obj_align(btnStopLap, lv_scr_act(), LV_ALIGN_IN_BOTTOM_LEFT, 0, 0);
lv_obj_set_style_local_bg_color(btnStopLap, LV_BTN_PART_MAIN, LV_STATE_DISABLED, lv_color_hex(0x0b0b0b));
lv_obj_set_style_local_bg_color(btnStopLap, LV_BTN_PART_MAIN, LV_STATE_DISABLED, LV_COLOR_MAKE(0x18, 0x18, 0x18));
txtStopLap = lv_label_create(btnStopLap, nullptr);
lv_obj_set_style_local_text_color(txtStopLap, LV_BTN_PART_MAIN, LV_STATE_DISABLED, LV_COLOR_MAKE(0xb0, 0xb0, 0xb0));
lv_label_set_text_static(txtStopLap, Symbols::stop);