diff --git a/crates/tek_core/src/time.rs b/crates/tek_core/src/time.rs
index 7f14578b..4cbbcdcc 100644
--- a/crates/tek_core/src/time.rs
+++ b/crates/tek_core/src/time.rs
@@ -2,6 +2,8 @@ use crate::*;
 use std::iter::Iterator;
 
 pub const DEFAULT_PPQ: f64 = 96.0;
+/// FIXME: remove this and use PPQ from timebase everywhere:
+pub const PPQ: usize = 96;
 
 /// A unit of time, represented as an atomic 64-bit float.
 ///
diff --git a/crates/tek_core/src/tui.rs b/crates/tek_core/src/tui.rs
index a87a2589..658f8773 100644
--- a/crates/tek_core/src/tui.rs
+++ b/crates/tek_core/src/tui.rs
@@ -676,14 +676,10 @@ border! {
     }
 }
 
-pub const COLOR_BG0:       Color = Color::Rgb(30, 33, 36);
-pub const COLOR_BG1:       Color = Color::Rgb(41, 46, 57);
-pub const COLOR_BG2:       Color = Color::Rgb(46, 52, 64);
-pub const COLOR_BG3:       Color = Color::Rgb(59, 66, 82);
-pub const COLOR_BG4:       Color = Color::Rgb(67, 76, 94);
-pub const COLOR_BG5:       Color = Color::Rgb(76, 86, 106);
-pub const COLOR_RED:       Color = Color::Rgb(191, 97, 106);
-pub const COLOR_YELLOW:    Color = Color::Rgb(235, 203, 139);
-pub const COLOR_GREEN:     Color = Color::Rgb(163, 190, 140);
-pub const COLOR_PLAYING:   Color = Color::Rgb(60, 100, 50);
-pub const COLOR_SEPARATOR: Color = Color::Rgb(0, 0, 0);
+pub const CORNERS: CornersTall = CornersTall(Style {
+    fg:              Some(Color::Rgb(96, 255, 32)),
+    bg:              None,
+    underline_color: None,
+    add_modifier:    Modifier::empty(),
+    sub_modifier:    Modifier::DIM
+});
diff --git a/crates/tek_sequencer/src/arranger_tui.rs b/crates/tek_sequencer/src/arranger_tui.rs
index 32081bb5..2e43a45f 100644
--- a/crates/tek_sequencer/src/arranger_tui.rs
+++ b/crates/tek_sequencer/src/arranger_tui.rs
@@ -149,7 +149,7 @@ impl<'a> Content for VerticalArranger<'a, Tui> {
             let any_size = |_|Ok(Some([0,0]));
             // column separators
             add(&CustomWidget::new(any_size, move|to: &mut TuiOutput|{
-                let style = Some(Style::default().fg(COLOR_SEPARATOR));
+                let style = Some(Style::default().fg(Color::Rgb(0, 0, 0)));
                 Ok(for x in cols.iter().map(|col|col.1) {
                     let x = scene_title_w + to.area().x() + x as u16;
                     for y in to.area().y()..to.area().y2() { to.blit(&"▎", x, y, style); }
@@ -164,7 +164,7 @@ impl<'a> Content for VerticalArranger<'a, Tui> {
                         if x < to.buffer.area.x && y < to.buffer.area.y {
                             let cell = to.buffer.get_mut(x, y);
                             cell.modifier = Modifier::UNDERLINED;
-                            cell.underline_color = COLOR_SEPARATOR;
+                            cell.underline_color = Color::Rgb(0, 0, 0);
                         }
                     }
                 })
diff --git a/crates/tek_sequencer/src/lib.rs b/crates/tek_sequencer/src/lib.rs
index ceb4ec9f..22a1cb97 100644
--- a/crates/tek_sequencer/src/lib.rs
+++ b/crates/tek_sequencer/src/lib.rs
@@ -12,17 +12,6 @@ submod! {
     transport transport_cmd transport_tui transport_snd
 }
 
-/// FIXME: use PPQ value from global timebase
-pub const PPQ: usize = 96;
-
-pub const CORNERS: CornersTall = CornersTall(Style {
-    fg: Some(Color::Rgb(96, 255, 32)),
-    bg: None,
-    underline_color: None,
-    add_modifier: Modifier::empty(),
-    sub_modifier: Modifier::DIM
-});
-
 /// Octave number (from -1 to 9)
 pub const NTH_OCTAVE: [&'static str;11] = [
     "-1", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"