diff --git a/core/embed/rust/src/ui/model_mercury/theme/mod.rs b/core/embed/rust/src/ui/model_mercury/theme/mod.rs
index 1a61eeef4..a1116acca 100644
--- a/core/embed/rust/src/ui/model_mercury/theme/mod.rs
+++ b/core/embed/rust/src/ui/model_mercury/theme/mod.rs
@@ -28,6 +28,18 @@ pub const GREEN_LIME: Color = Color::rgb(0x9B, 0xE8, 0x87);
 pub const ORANGE_DIMMED: Color = Color::rgb(0x9E, 0x57, 0x42);
 pub const ORANGE_LIGHT: Color = Color::rgb(0xFF, 0x8D, 0x6A); // cancel button
 
+// TODO: delete colors below when ui-t3t1 done
+pub const RED: Color = Color::rgb(0xE7, 0x0E, 0x0E); // button
+pub const RED_DARK: Color = Color::rgb(0xAE, 0x09, 0x09); // button pressed
+pub const YELLOW: Color = Color::rgb(0xD9, 0x9E, 0x00); // button
+pub const YELLOW_DARK: Color = Color::rgb(0x7A, 0x58, 0x00); // button pressed
+pub const GREEN_DARK: Color = Color::rgb(0x00, 0x55, 0x1D); // button pressed
+pub const BLUE: Color = Color::rgb(0x06, 0x1E, 0xAD); // button
+pub const BLUE_DARK: Color = Color::rgb(0x04, 0x10, 0x58); // button pressed
+pub const OFF_WHITE: Color = Color::rgb(0xDE, 0xDE, 0xDE); // very light grey
+pub const GREY_MEDIUM: Color = Color::rgb(0x4F, 0x4F, 0x4F); // button pressed
+pub const VIOLET: Color = Color::rgb(0x95, 0x00, 0xCA);
+
 pub const FATAL_ERROR_COLOR: Color = Color::rgb(0xE7, 0x0E, 0x0E);
 pub const FATAL_ERROR_HIGHLIGHT_COLOR: Color = Color::rgb(0xFF, 0x41, 0x41);