configure firacode font features, cleanup

build.sh

@@ -7,3 +7,5 @@ for patch in patches/*.diff; do
 	patch -d st-final <"$patch"
 done
 cp -f config.h st-final/
+cd st-final || exit 1
+make

patches/font-features.diff

@@ -0,0 +1,19 @@
+--- a/hb.c
++++ b/hb.c
+@@ -27,7 +27,15 @@ static HbFontMatch *hbfontcache = NULL;
+  * e. g.
+  * FEATURE('c', 'a', 'l', 't'), FEATURE('d', 'l', 'i', 'g')
+  */
+-hb_feature_t features[] = { 0 };
++hb_feature_t features[] = {
++    FEATURE('c','v','0','2'),
++    FEATURE('c','v','1','6'),
++    FEATURE('s','s','0','2'),
++    FEATURE('s','s','0','3'),
++    FEATURE('s','s','0','7'),
++    FEATURE('s','s','0','8'),
++    FEATURE('s','s','0','9'),
++};
+ 
+ void
+ hbunloadfonts()

patches/selection-colors.diff

@@ -1,39 +1,3 @@
-diff --git a/config.def.h b/config.def.h
-index 27c811e..205478f 100644
---- a/config.def.h
-+++ b/config.def.h
-@@ -152,7 +152,7 @@ static const char *colorname[] = {
- 
- 	/* more colors can be added after 255 to use with DefaultXX */
- 	"#add8e6", /* 256 -> cursor */
--	"#555555", /* 257 -> rev cursor*/
-+	"#2e3440", /* 257 -> rev cursor*/
- 	"#000000", /* 258 -> bg */
- 	"#e5e5e5", /* 259 -> fg */
- };
-@@ -160,13 +160,18 @@ static const char *colorname[] = {
- 
- /*
-  * Default colors (colorname index)
-- * foreground, background, cursor, reverse cursor
-++ * foreground, background, cursor, reverse cursor, selection
-  */
- unsigned int defaultbg = 0;
- unsigned int bg = 17, bgUnfocused = 16;
- unsigned int defaultfg = 259;
- unsigned int defaultcs = 256;
--unsigned int defaultrcs = 257;
-+unsigned int defaultrcs = 256;
-+unsigned int selectionbg = 257;
-+unsigned int selectionfg = 7;
-+/* If 0 use selectionfg as foreground in order to have a uniform foreground-color */
-+/* Else if 1 keep original foreground-color of each cell => more colors :) */
-+static int ignoreselfg = 1;
- 
- 
- /*
-diff --git a/st.h b/st.h
-index 0810857..488ec5e 100644
 --- a/st.h
 +++ b/st.h
 @@ -43,6 +43,7 @@ enum glyph_attribute {
@@ -44,8 +8,6 @@ index 0810857..488ec5e 100644
  	ATTR_BOLD_FAINT = ATTR_BOLD | ATTR_FAINT,
  	ATTR_DIRTYUNDERLINE = 1 << 15,
  };
-diff --git a/x.c b/x.c
-index c6313a3..5f12039 100644
 --- a/x.c
 +++ b/x.c
 @@ -1568,6 +1568,12 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i