fix color rounding with NO_CIE1931 and color_pixel_depts below 8 #81

	name: esp-idf without Adafruit GFX Library

	on:
	push:
	paths-ignore:
	- '**.md'
	- 'doc/**'
	pull_request:
	paths-ignore:
	- '**.md'
	- 'doc/**'

	jobs:
	build:
	name: esp-idf 5.1.4 without Adafruit GFX

	runs-on: ubuntu-latest

	steps:
	- name: Checkout repo
	uses: actions/checkout@v5
	with:
	submodules: 'recursive'
	- name: Checkout ESP32-HUB75-MatrixPanel-I2S-DMA component
	uses: actions/checkout@v5
	with:
	path: 'examples/esp-idf/without-gfx/components/ESP32-HUB75-MatrixPanel-I2S-DMA'
	- name: esp-idf build
	uses: espressif/esp-idf-ci-action@v1
	with:
	esp_idf_version: v5.1.4
	target: esp32
	path: 'examples/esp-idf/without-gfx'

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