Nargaron
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I apologize for misleading you.
The color is recorded as BGRA, which means Blue Green Red Alpha. This is exactly the sequence. Why BGRA? The file uses little-endian, meaning it's read from the end. Usually, the color is RGB, but here it's reversed, and then the alpha channel is added. Alpha controls transparency; 0 represents maximum transparency, so the effect won't be visible. But the higher the value, the brighter the glow will appear (due to opacity). In this file, for example, it's 00 ff 00 33.
The color is recorded as BGRA, which means Blue Green Red Alpha. This is exactly the sequence. Why BGRA? The file uses little-endian, meaning it's read from the end. Usually, the color is RGB, but here it's reversed, and then the alpha channel is added. Alpha controls transparency; 0 represents maximum transparency, so the effect won't be visible. But the higher the value, the brighter the glow will appear (due to opacity). In this file, for example, it's 00 ff 00 33.