diff --git a/compiler/res/prog8lib/shared_cbm_textio_functions.p8 b/compiler/res/prog8lib/shared_cbm_textio_functions.p8
index f3d5c6bc2..8dd2cdbe6 100644
--- a/compiler/res/prog8lib/shared_cbm_textio_functions.p8
+++ b/compiler/res/prog8lib/shared_cbm_textio_functions.p8
@@ -23,6 +23,14 @@ txt {
         chrout(' ')
     }
 
+    sub rvs_on() {
+        txt.chrout(18)
+    }
+
+    sub rvs_off() {
+        txt.chrout(146)
+    }
+
 
     asmsub  print (str text @ AY) clobbers(A,Y)  {
     	; ---- print zero terminated string, in PETSCII encoding, from A/Y
diff --git a/compiler/res/prog8lib/virtual/textio.p8 b/compiler/res/prog8lib/virtual/textio.p8
index 28fa37f63..d2f2ab309 100644
--- a/compiler/res/prog8lib/virtual/textio.p8
+++ b/compiler/res/prog8lib/virtual/textio.p8
@@ -53,6 +53,21 @@ sub uppercase() {
     ; not supported
 }
 
+sub rvs_on() {
+    print("\x1b[7m")
+}
+
+sub rvs_off() {
+    print("\x1b[0m")
+}
+
+sub color (ubyte txtcol) {
+    print("\x1b[3")
+    chrout('0' + txtcol)
+    chrout('m')
+}
+
+
 sub chrout(ubyte char) {
     %ir {{
         loadm.b r99100,txt.chrout.char
diff --git a/docs/source/_static/symboldumps/skeletons-c128.txt b/docs/source/_static/symboldumps/skeletons-c128.txt
index 8f4ebf8ea..eb8d05edf 100644
--- a/docs/source/_static/symboldumps/skeletons-c128.txt
+++ b/docs/source/_static/symboldumps/skeletons-c128.txt
@@ -1,6 +1,6 @@
 
 Prog8 compiler v12.0-SNAPSHOT by Irmen de Jong (irmen@razorvine.net)
-Prerelease version from git commit 06e16789 in branch master
+Prerelease version from git commit 8a717c74 in branch master
 This software is licensed under the GNU GPL 3.0, see https://www.gnu.org/licenses/gpl.html
 
 Compiling program import-all-c128.p8
@@ -785,6 +785,8 @@ txt  {
     print_uwhex  (uword value @AY, bool prefix @Pc) -> clobbers (A,X,Y) 
     print_w  (word value @AY) -> clobbers (A,X,Y) 
     row  (ubyte rownum @A) -> clobbers (A,X,Y) 
+    rvs_off  () 
+    rvs_on  () 
     scroll_down  (bool alsocolors @Pc) -> clobbers (A,X) 
     scroll_left  (bool alsocolors @Pc) -> clobbers (A,X,Y) 
     scroll_right  (bool alsocolors @Pc) -> clobbers (A,X) 
diff --git a/docs/source/_static/symboldumps/skeletons-c64.txt b/docs/source/_static/symboldumps/skeletons-c64.txt
index 86f12b135..673ab9602 100644
--- a/docs/source/_static/symboldumps/skeletons-c64.txt
+++ b/docs/source/_static/symboldumps/skeletons-c64.txt
@@ -1,6 +1,6 @@
 
 Prog8 compiler v12.0-SNAPSHOT by Irmen de Jong (irmen@razorvine.net)
-Prerelease version from git commit 06e16789 in branch master
+Prerelease version from git commit 8a717c74 in branch master
 This software is licensed under the GNU GPL 3.0, see https://www.gnu.org/licenses/gpl.html
 
 Compiling program import-all-c64.p8
@@ -898,6 +898,8 @@ txt  {
     print_uwhex  (uword value @AY, bool prefix @Pc) -> clobbers (A,X,Y) 
     print_w  (word value @AY) -> clobbers (A,X,Y) 
     row  (ubyte rownum @A) -> clobbers (A,X,Y) 
+    rvs_off  () 
+    rvs_on  () 
     scroll_down  (bool alsocolors @Pc) -> clobbers (A,X) 
     scroll_left  (bool alsocolors @Pc) -> clobbers (A,X,Y) 
     scroll_right  (bool alsocolors @Pc) -> clobbers (A,X) 
diff --git a/docs/source/_static/symboldumps/skeletons-cx16.txt b/docs/source/_static/symboldumps/skeletons-cx16.txt
index 3b3f06033..de5358170 100644
--- a/docs/source/_static/symboldumps/skeletons-cx16.txt
+++ b/docs/source/_static/symboldumps/skeletons-cx16.txt
@@ -1,6 +1,6 @@
 
 Prog8 compiler v12.0-SNAPSHOT by Irmen de Jong (irmen@razorvine.net)
-Prerelease version from git commit 06e16789 in branch master
+Prerelease version from git commit 8a717c74 in branch master
 This software is licensed under the GNU GPL 3.0, see https://www.gnu.org/licenses/gpl.html
 
 Compiling program import-all-cx16.p8
@@ -1382,6 +1382,8 @@ txt  {
     print_uwhex  (uword value @AY, bool prefix @Pc) -> clobbers (A,X,Y) 
     print_w  (word value @AY) -> clobbers (A,X,Y) 
     row  (ubyte rownum @A) -> clobbers (A,X,Y) 
+    rvs_off  () 
+    rvs_on  () 
     scroll_down  () -> clobbers (A,X,Y) 
     scroll_left  () -> clobbers (A,X,Y) 
     scroll_right  () -> clobbers (A,X,Y) 
diff --git a/docs/source/_static/symboldumps/skeletons-pet32.txt b/docs/source/_static/symboldumps/skeletons-pet32.txt
index 659f42ef2..41d996a09 100644
--- a/docs/source/_static/symboldumps/skeletons-pet32.txt
+++ b/docs/source/_static/symboldumps/skeletons-pet32.txt
@@ -1,6 +1,6 @@
 
 Prog8 compiler v12.0-SNAPSHOT by Irmen de Jong (irmen@razorvine.net)
-Prerelease version from git commit 06e16789 in branch master
+Prerelease version from git commit 8a717c74 in branch master
 This software is licensed under the GNU GPL 3.0, see https://www.gnu.org/licenses/gpl.html
 
 Compiling program import-all-pet32.p8
@@ -503,6 +503,8 @@ txt  {
     print_uwbin  (uword value @AY, bool prefix @Pc) -> clobbers (A,X,Y) 
     print_uwhex  (uword value @AY, bool prefix @Pc) -> clobbers (A,X,Y) 
     print_w  (word value @AY) -> clobbers (A,X,Y) 
+    rvs_off  () 
+    rvs_on  () 
     scroll_down  () -> clobbers (A,X) 
     scroll_left  () -> clobbers (A,X,Y) 
     scroll_right  () -> clobbers (A,X) 
diff --git a/docs/source/_static/symboldumps/skeletons-virtual.txt b/docs/source/_static/symboldumps/skeletons-virtual.txt
index 43b387f73..5804e16d6 100644
--- a/docs/source/_static/symboldumps/skeletons-virtual.txt
+++ b/docs/source/_static/symboldumps/skeletons-virtual.txt
@@ -1,6 +1,6 @@
 
 Prog8 compiler v12.0-SNAPSHOT by Irmen de Jong (irmen@razorvine.net)
-Prerelease version from git commit 06e16789 in branch master
+Prerelease version from git commit 8a717c74 in branch master
 This software is licensed under the GNU GPL 3.0, see https://www.gnu.org/licenses/gpl.html
 
 Compiling program import-all-virtual.p8
@@ -526,6 +526,7 @@ txt  {
     chrout  (ubyte char) 
     clear_screen  () 
     cls  () 
+    color  (ubyte txtcol) 
     column  (ubyte col) 
     height  () -> ubyte 
     home  () 
@@ -548,6 +549,8 @@ txt  {
     print_uwbin  (uword value, bool prefix) 
     print_uwhex  (uword value, bool prefix) 
     print_w  (word value) 
+    rvs_off  () 
+    rvs_on  () 
     setchr  (ubyte col, ubyte row, ubyte char) 
     spc  () 
     uppercase  ()