diff --git a/src/editor/ui.d b/src/editor/ui.d
index fece7a3..0498fb0 100644
--- a/src/editor/ui.d
+++ b/src/editor/ui.d
@@ -40,9 +40,12 @@ const Vec4[4] CMD_PALETTE_INPUT_COL = [
 	Vec4(0.17, 0.17, 0.17, 1.0),
 ];
 
+const u64 VERTEX_MAX_COUNT = 10000;
+
 // TODO: add setting
 const f32 TEXT_SIZE = 16.0;
 
+
 const UIPanel g_ui_nil_panel;
 UIPanel* g_UI_NIL_PANEL;
 
@@ -446,6 +449,7 @@ Panel(UIPanel* panel)
 		f32 x = panel.rect.x0;
 		f32 y = panel.rect.y0 + TEXT_SIZE;
 
+		f32 code_view_width = panel.size.x-lcw-border*2.0-padding*2.0;
 		FontAtlas* atlas = &ctx.atlas_buf.atlas;
 		bool edit = EditModeActive();
 		U64Vec2 pos = VecPos(&ed.buf);
@@ -459,7 +463,8 @@ Panel(UIPanel* panel)
 			x_pos += padding;
 
 			u64 ch_offset;
-			auto parts = MakeMultiline(buf.text, panel.size.x-lcw, buf.style);
+
+			auto parts = MakeMultiline(buf.text, code_view_width, buf.style);
 			for(auto n = parts; n != null; n = n.next)
 			{
 				auto l = &n.value;
@@ -562,6 +567,8 @@ CommandPalette(CmdPalette* cmd)
 		{
 			DrawChar(&ctx.atlas_buf.atlas, options[i][j], &ch_x, ch_y, Vec4(1.0));
 		}
+
+		if(y+h > size.y+h) break;
 	}
 }
 
@@ -679,11 +686,10 @@ InitUICtx(PlatformWindow* window)
 		tab_width: 2,
 	};
 
-	u64 vertex_size = 10000;
 	for(u64 i = 0; i < FRAME_OVERLAP; i += 1)
 	{
-		ctx.buffers[i].m_vtx = CreateMappedBuffer!(Vertex)(&ctx.rd, BT.Vertex, vertex_size);
-		ctx.buffers[i].m_idx = CreateMappedBuffer!(u32)(&ctx.rd, BT.Index, cast(u64)(ceil(vertex_size * 1.5)));
+		ctx.buffers[i].m_vtx = CreateMappedBuffer!(Vertex)(&ctx.rd, BT.Vertex, VERTEX_MAX_COUNT);
+		ctx.buffers[i].m_idx = CreateMappedBuffer!(u32)(&ctx.rd, BT.Index, cast(u64)(ceil(VERTEX_MAX_COUNT*1.5)));
 		ctx.buffers[i].vtx = ctx.buffers[i].m_vtx.data;
 		ctx.buffers[i].idx = ctx.buffers[i].m_idx.data;
 	}
@@ -1202,6 +1208,8 @@ AddUIIndices(UICtx* ctx)
 	ctx.buffers[ctx.f_idx].idx[5] = 3; 
 
 	ctx.buffers[ctx.f_idx].count += 1;
+
+	assert(ctx.buffers[ctx.f_idx].count < VERTEX_MAX_COUNT);
 }
 
 bool