Link graph GUI: Fix poor contrast in graph legend window cargo labels.

Select foreground colour depending on brightness of background.
2016-11-21 23:08:13 +00:00
parent 55057110a5
commit fa261207ae
3 changed files with 5 additions and 5 deletions
--- a/src/gfx_func.h
+++ b/src/gfx_func.h
@@ -185,7 +185,7 @@ inline int GetCharacterHeight(FontSize size)

 extern DrawPixelInfo *_cur_dpi;

-TextColour GetContrastColour(uint8 background);
+TextColour GetContrastColour(uint8 background, uint8 threshold = 128);

 /**
 * All 16 colour gradients