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Match OrcaSlicer's color theme in the color-mixing UI

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SoftFever
2026-08-25 00:47:25 +08:00
parent 1631d3cf01
commit 0fa25acda8
10 changed files with 264 additions and 352 deletions
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src/slic3r/GUI/GLCanvas3D.cpp
+7 -1
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@@ -9751,7 +9751,13 @@ void GLCanvas3D::_render_paint_toolbar() const
const float text_offset_y = 4.0f * em_unit * f_scale;
for (int i = 0; i < extruder_num; i++) {
decode_color(colors[i], rgba);
// A gradient slot's swatch shows its fade instead of the blended colour in `colors`, so the
// labels take their contrast from the colour printed at the middle of the fade they sit on.
if (i < (int) gradient_ramps.size() && !gradient_ramps[i].empty()) {
const wxColour& c = gradient_ramps[i][gradient_ramps[i].size() / 2];
rgba = ColorRGBA(c.Red(), c.Green(), c.Blue(), c.Alpha());
} else
decode_color(colors[i], rgba);
float gray = 0.299 * rgba.r_uchar() + 0.587 * rgba.g_uchar() + 0.114 * rgba.b_uchar();
ImVec4 text_color = gray < 80 ? ImVec4(1.0f, 1.0f, 1.0f, 1.0f) : ImVec4(0, 0, 0, 1.0f);